diff --git a/cs3/gateway/v1beta1/gateway_api.proto b/cs3/gateway/v1beta1/gateway_api.proto
index ed53a8c..ea62f1d 100644
--- a/cs3/gateway/v1beta1/gateway_api.proto
+++ b/cs3/gateway/v1beta1/gateway_api.proto
@@ -384,6 +384,8 @@ service GatewayAPI {
   rpc GetAcceptedUser(cs3.ocm.invite.v1beta1.GetAcceptedUserRequest) returns (cs3.ocm.invite.v1beta1.GetAcceptedUserResponse);
   // Finds users who accepted invite tokens by their attributes.
   rpc FindAcceptedUsers(cs3.ocm.invite.v1beta1.FindAcceptedUsersRequest) returns (cs3.ocm.invite.v1beta1.FindAcceptedUsersResponse);
+  // Delete a previously accepted remote user, that is unfriend that user.
+  rpc DeleteAcceptedUser(cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest) returns (cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse);
   // *****************************************************************/
   // ******************** OCM PROVIDER AUTHORIZER ********************/
   // *****************************************************************/
@@ -400,8 +402,12 @@ service GatewayAPI {
   // **************************** OCM CORE ***************************/
   // *****************************************************************/
 
-  // Creates a new ocm share.
+  // Creates a new OCM share.
   rpc CreateOCMCoreShare(cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest) returns (cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse);
+  // Updates an OCM share.
+  rpc UpdateOCMCoreShare(cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest) returns (cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse);
+  // Deletes an OCM share.
+  rpc DeleteOCMCoreShare(cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest) returns (cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse);
   // *****************************************************************/
   // ************************** FILE TRANSFER ************************/
   // *****************************************************************/
diff --git a/cs3/ocm/core/v1beta1/ocm_core_api.proto b/cs3/ocm/core/v1beta1/ocm_core_api.proto
index 258fbfd..a843777 100644
--- a/cs3/ocm/core/v1beta1/ocm_core_api.proto
+++ b/cs3/ocm/core/v1beta1/ocm_core_api.proto
@@ -36,7 +36,10 @@ import "cs3/types/v1beta1/types.proto";
 
 // OCM Core API
 //
-// The OCM Core API is the mapping in GRPC of the OCM core protocol.
+// the OCM Core API is the mapping for the local system of the OCM protocol,
+// including multi-protocol shares. Implementations are expected to expose
+// the `/ocm` endpoints according to the OCM API, and in response to those
+// endpoints implement the following API.
 //
 // The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
 // NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and
@@ -50,11 +53,17 @@ import "cs3/types/v1beta1/types.proto";
 // Any method MAY return UNKNOWN.
 // Any method MAY return UNAUTHENTICATED.
 service OcmCoreAPI {
-  // Creates a new ocm share.
+  // Creates a new OCM share, in response to a call from remote to:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1shares/post
   rpc CreateOCMCoreShare(CreateOCMCoreShareRequest) returns (CreateOCMCoreShareResponse);
+  // Updates an OCM share, in response to a notification from the remote system to:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1notifications/post
+  rpc UpdateOCMCoreShare(UpdateOCMCoreShareRequest) returns (UpdateOCMCoreShareResponse);
+  // Deletes an OCM share, in response to a notification from the remote system to:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1notifications/post
+  rpc DeleteOCMCoreShare(DeleteOCMCoreShareRequest) returns (DeleteOCMCoreShareResponse);
 }
 
-// https://rawgit.com/GEANT/OCM-API/v1/docs.html#null%2Fpaths%2F~1shares%2Fpost
 message CreateOCMCoreShareRequest {
   // OPTIONAL.
   // Opaque information.
@@ -87,10 +96,11 @@ message CreateOCMCoreShareRequest {
   // Recipient share type.
   cs3.sharing.ocm.v1beta1.ShareType share_type = 9;
   // OPTIONAL.
-  // The expiration time for the ocm share.
+  // The expiration time for the OCM share.
   cs3.types.v1beta1.Timestamp expiration = 10;
   // REQUIRED.
-  // The protocols which are used to establish synchronisation.
+  // The protocols which are used to establish synchronisation,
+  // with their access rights.
   // See also cs3/sharing/ocm/v1beta1/resources.proto for how to map
   // this to the OCM share payload.
   repeated cs3.sharing.ocm.v1beta1.Protocol protocols = 11;
@@ -109,3 +119,52 @@ message CreateOCMCoreShareResponse {
   // REQUIRED.
   cs3.types.v1beta1.Timestamp created = 4;
 }
+
+message UpdateOCMCoreShareRequest {
+  // OPTIONAL.
+  // Opaque information.
+  cs3.types.v1beta1.Opaque opaque = 1;
+  // REQUIRED.
+  // Unique ID to identify the share at the consumer side.
+  string ocm_share_id = 2;
+  // OPTIONAL.
+  // Description for the share.
+  string description = 3;
+  // OPTIONAL.
+  // Recipient share type.
+  cs3.sharing.ocm.v1beta1.ShareType share_type = 5;
+  // OPTIONAL.
+  // The expiration time for the OCM share.
+  cs3.types.v1beta1.Timestamp expiration = 6;
+  // OPTIONAL.
+  // The protocols which are used to establish synchronisation,
+  // with their access rights.
+  repeated cs3.sharing.ocm.v1beta1.Protocol protocols = 7;
+}
+
+message UpdateOCMCoreShareResponse {
+  // REQUIRED.
+  // The response status.
+  cs3.rpc.v1beta1.Status status = 1;
+  // OPTIONAL.
+  // Opaque information.
+  cs3.types.v1beta1.Opaque opaque = 2;
+}
+
+message DeleteOCMCoreShareRequest {
+  // REQUIRED.
+  // Unique ID to identify the share at the consumer side.
+  string id = 1;
+  // OPTIONAL.
+  // Opaque information.
+  cs3.types.v1beta1.Opaque opaque = 2;
+}
+
+message DeleteOCMCoreShareResponse {
+  // REQUIRED.
+  // The response status.
+  cs3.rpc.v1beta1.Status status = 1;
+  // OPTIONAL.
+  // Opaque information.
+  cs3.types.v1beta1.Opaque opaque = 2;
+}
diff --git a/cs3/ocm/invite/v1beta1/invite_api.proto b/cs3/ocm/invite/v1beta1/invite_api.proto
index e0d6c2b..0d2d815 100644
--- a/cs3/ocm/invite/v1beta1/invite_api.proto
+++ b/cs3/ocm/invite/v1beta1/invite_api.proto
@@ -39,6 +39,8 @@ import "cs3/types/v1beta1/types.proto";
 // The Invite API is meant to invite users and groups belonging to other
 // sync'n'share systems, so that collaboration of resources can be enabled.
 //
+// The following APIs match the OCM v1.1 spec for the /invite-accepted endpoint.
+//
 // The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
 // NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and
 // "OPTIONAL" in this document are to be interpreted as described in
@@ -55,7 +57,9 @@ service InviteAPI {
   rpc GenerateInviteToken(GenerateInviteTokenRequest) returns (GenerateInviteTokenResponse);
   // Lists the valid tokens generated by the user.
   rpc ListInviteTokens(ListInviteTokensRequest) returns (ListInviteTokensResponse);
-  // Forwards a received invite to the sync'n'share system provider.
+  // Forwards a received invite to the remote sync'n'share system provider. The remote
+  // system SHALL get an `invite-accepted` call as follows:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1invite-accepted/post
   // MUST return CODE_NOT_FOUND if the token does not exist.
   // MUST return CODE_INVALID_ARGUMENT if the token expired.
   // MUST return CODE_ALREADY_EXISTS if the user already accepted an invite.
@@ -71,6 +75,9 @@ service InviteAPI {
   rpc GetAcceptedUser(GetAcceptedUserRequest) returns (GetAcceptedUserResponse);
   // Finds users who accepted invite tokens by their attributes.
   rpc FindAcceptedUsers(FindAcceptedUsersRequest) returns (FindAcceptedUsersResponse);
+  // Delete a previously accepted remote user, that is unfriend that user.
+  // MUST return CODE_NOT_FOUND if the user does not exist.
+  rpc DeleteAcceptedUser(DeleteAcceptedUserRequest) returns (DeleteAcceptedUserResponse);
 }
 
 message GenerateInviteTokenRequest {
@@ -206,3 +213,21 @@ message FindAcceptedUsersResponse {
   // The accepted users matching the specified filter.
   repeated cs3.identity.user.v1beta1.User accepted_users = 3;
 }
+
+message DeleteAcceptedUserRequest {
+  // OPTIONAL.
+  // Opaque information.
+  cs3.types.v1beta1.Opaque opaque = 1;
+  // REQUIRED.
+  // The id of the user.
+  cs3.identity.user.v1beta1.UserId remote_user_id = 2;
+}
+
+message DeleteAcceptedUserResponse {
+  // REQUIRED.
+  // The response status.
+  cs3.rpc.v1beta1.Status status = 1;
+  // OPTIONAL.
+  // Opaque information.
+  cs3.types.v1beta1.Opaque opaque = 2;
+}
diff --git a/cs3/sharing/ocm/v1beta1/ocm_api.proto b/cs3/sharing/ocm/v1beta1/ocm_api.proto
index 0132740..ab00767 100644
--- a/cs3/sharing/ocm/v1beta1/ocm_api.proto
+++ b/cs3/sharing/ocm/v1beta1/ocm_api.proto
@@ -42,8 +42,7 @@ import "google/protobuf/field_mask.proto";
 // resources from the perspective of the creator or the share and
 // from the perspective of the receiver of the share.
 //
-// The following APIs match the OCM v1.1 spec, including the invitation
-// workflow and multi-protocol shares.
+// The following APIs match the OCM v1.1 spec including multi-protocol shares.
 //
 // The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
 // NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and
@@ -61,10 +60,15 @@ service OcmAPI {
   // MUST return CODE_NOT_FOUND if the resource reference does not exist.
   // MUST return CODE_ALREADY_EXISTS if the share already exists for the 4-tuple consisting of
   // (owner, shared_resource, grantee).
-  // New shares MUST be created in the state SHARE_STATE_PENDING.
+  // New shares MUST be created in the state SHARE_STATE_PENDING, and MUST be sent
+  // to the remote system using the OCM API at:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1shares/post
   rpc CreateOCMShare(CreateOCMShareRequest) returns (CreateOCMShareResponse);
   // Removes a share.
   // MUST return CODE_NOT_FOUND if the share reference does not exist.
+  // This action SHALL be notified to the remote system
+  // using the OCM API at:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1notifications/post
   rpc RemoveOCMShare(RemoveOCMShareRequest) returns (RemoveOCMShareResponse);
   // Gets share information for a single share.
   // MUST return CODE_NOT_FOUND if the share reference does not exist.
@@ -78,6 +82,9 @@ service OcmAPI {
   rpc ListOCMShares(ListOCMSharesRequest) returns (ListOCMSharesResponse);
   // Updates a share.
   // MUST return CODE_NOT_FOUND if the share reference does not exist.
+  // This action SHALL be notified to the remote system
+  // using the OCM API at:
+  // https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1notifications/post
   rpc UpdateOCMShare(UpdateOCMShareRequest) returns (UpdateOCMShareResponse);
   // List all shares the authenticated principal has received.
   rpc ListReceivedOCMShares(ListReceivedOCMSharesRequest) returns (ListReceivedOCMSharesResponse);
@@ -128,21 +135,19 @@ message UpdateOCMShareRequest {
   // OPTIONAL.
   // Opaque information.
   cs3.types.v1beta1.Opaque opaque = 1;
-  // REQUIRED.
-
   // REQUIRED.
   ShareReference ref = 2;
   // REQUIRED.
   message UpdateField {
     // One of the update fields MUST be specified.
     oneof field {
-      // Update the permissions.
-      SharePermissions permissions = 2;
-      // Update the display name.
-      string display_name = 3;
+      // Update the expiration.
+      cs3.types.v1beta1.Timestamp expiration = 1;
+      // Update access methods.
+      AccessMethod access_methods = 2;
     }
   }
-  UpdateField field = 3;
+  repeated UpdateField field = 3;
 }
 
 message UpdateOCMShareResponse {
diff --git a/cs3/sharing/ocm/v1beta1/resources.proto b/cs3/sharing/ocm/v1beta1/resources.proto
index cad5dc9..0e364ee 100644
--- a/cs3/sharing/ocm/v1beta1/resources.proto
+++ b/cs3/sharing/ocm/v1beta1/resources.proto
@@ -224,7 +224,7 @@ message ShareGrant {
   SharePermissions permissions = 2;
 }
 
-// The protocol which is used to establish synchronisation.
+// The protocol which is used to give access to a remote OCM user.
 message Protocol {
   // REQUIRED.
   // One of the protocols MUST be specified.
@@ -287,7 +287,7 @@ enum ShareType {
   SHARE_TYPE_GROUP = 2;
 }
 
-// Defines how the recipient accesses the share.
+// Defines how the recipient accesses an incoming remote OCM share.
 message AccessMethod {
   // REQUIRED.
   // One of the access method MUST be specified.
@@ -308,15 +308,19 @@ message AccessMethod {
 message WebDAVAccessMethod {
   // REQUIRED.
   // The permissions for the share.
-  storage.provider.v1beta1.ResourcePermissions permissions = 2;
+  storage.provider.v1beta1.ResourcePermissions permissions = 1;
 }
 
 // Defines the options for the Webapp access method.
 message WebappAccessMethod {
   // REQUIRED.
   // The view mode for the share.
-  cs3.app.provider.v1beta1.ViewMode view_mode = 2;
+  cs3.app.provider.v1beta1.ViewMode view_mode = 1;
 }
 
 // Defines the options for the Transfer access method.
-message TransferAccessMethod {}
+message TransferAccessMethod {
+  // REQUIRED.
+  // The destination path of the data transfer.
+  storage.provider.v1beta1.Reference destination = 1;
+}
diff --git a/docs/index.html b/docs/index.html
index acea9bd..a3b6ce8 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -1007,6 +1007,22 @@ <h2>Table of Contents</h2>
                   <a href="#cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse"><span class="badge">M</span>CreateOCMCoreShareResponse</a>
                 </li>
               
+                <li>
+                  <a href="#cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest"><span class="badge">M</span>DeleteOCMCoreShareRequest</a>
+                </li>
+              
+                <li>
+                  <a href="#cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse"><span class="badge">M</span>DeleteOCMCoreShareResponse</a>
+                </li>
+              
+                <li>
+                  <a href="#cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest"><span class="badge">M</span>UpdateOCMCoreShareRequest</a>
+                </li>
+              
+                <li>
+                  <a href="#cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse"><span class="badge">M</span>UpdateOCMCoreShareResponse</a>
+                </li>
+              
               
               
               
@@ -1030,6 +1046,14 @@ <h2>Table of Contents</h2>
                   <a href="#cs3.ocm.invite.v1beta1.AcceptInviteResponse"><span class="badge">M</span>AcceptInviteResponse</a>
                 </li>
               
+                <li>
+                  <a href="#cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest"><span class="badge">M</span>DeleteAcceptedUserRequest</a>
+                </li>
+              
+                <li>
+                  <a href="#cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse"><span class="badge">M</span>DeleteAcceptedUserResponse</a>
+                </li>
+              
                 <li>
                   <a href="#cs3.ocm.invite.v1beta1.FindAcceptedUsersRequest"><span class="badge">M</span>FindAcceptedUsersRequest</a>
                 </li>
@@ -3264,7 +3288,14 @@ <h3 id="cs3.gateway.v1beta1.GatewayAPI">GatewayAPI</h3>
                 <td>FindAcceptedUsers</td>
                 <td><a href="#cs3.ocm.invite.v1beta1.FindAcceptedUsersRequest">.cs3.ocm.invite.v1beta1.FindAcceptedUsersRequest</a></td>
                 <td><a href="#cs3.ocm.invite.v1beta1.FindAcceptedUsersResponse">.cs3.ocm.invite.v1beta1.FindAcceptedUsersResponse</a></td>
-                <td><p>Finds users who accepted invite tokens by their attributes.
+                <td><p>Finds users who accepted invite tokens by their attributes.</p></td>
+              </tr>
+            
+              <tr>
+                <td>DeleteAcceptedUser</td>
+                <td><a href="#cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest">.cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest</a></td>
+                <td><a href="#cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse">.cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse</a></td>
+                <td><p>Delete a previously accepted remote user, that is unfriend that user.
 
 *****************************************************************/
 ******************** OCM PROVIDER AUTHORIZER ********************/
@@ -3302,7 +3333,21 @@ <h3 id="cs3.gateway.v1beta1.GatewayAPI">GatewayAPI</h3>
                 <td>CreateOCMCoreShare</td>
                 <td><a href="#cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest">.cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest</a></td>
                 <td><a href="#cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse">.cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse</a></td>
-                <td><p>Creates a new ocm share.
+                <td><p>Creates a new OCM share.</p></td>
+              </tr>
+            
+              <tr>
+                <td>UpdateOCMCoreShare</td>
+                <td><a href="#cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest">.cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest</a></td>
+                <td><a href="#cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse">.cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse</a></td>
+                <td><p>Updates an OCM share.</p></td>
+              </tr>
+            
+              <tr>
+                <td>DeleteOCMCoreShare</td>
+                <td><a href="#cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest">.cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest</a></td>
+                <td><a href="#cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse">.cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse</a></td>
+                <td><p>Deletes an OCM share.
 
 *****************************************************************/
 ************************** FILE TRANSFER ************************/
@@ -8768,7 +8813,7 @@ <h2 id="cs3/ocm/core/v1beta1/ocm_core_api.proto">cs3/ocm/core/v1beta1/ocm_core_a
 
       
         <h3 id="cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest">CreateOCMCoreShareRequest</h3>
-        <p>https://rawgit.com/GEANT/OCM-API/v1/docs.html#null%2Fpaths%2F~1shares%2Fpost</p>
+        <p></p>
 
         
           <table class="field-table">
@@ -8857,7 +8902,7 @@ <h3 id="cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest">CreateOCMCoreShareReques
                   <td><a href="#cs3.types.v1beta1.Timestamp">cs3.types.v1beta1.Timestamp</a></td>
                   <td></td>
                   <td><p>OPTIONAL.
-The expiration time for the ocm share. </p></td>
+The expiration time for the OCM share. </p></td>
                 </tr>
               
                 <tr>
@@ -8865,7 +8910,8 @@ <h3 id="cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest">CreateOCMCoreShareReques
                   <td><a href="#cs3.sharing.ocm.v1beta1.Protocol">cs3.sharing.ocm.v1beta1.Protocol</a></td>
                   <td>repeated</td>
                   <td><p>REQUIRED.
-The protocols which are used to establish synchronisation.
+The protocols which are used to establish synchronisation,
+with their access rights.
 See also cs3/sharing/ocm/v1beta1/resources.proto for how to map
 this to the OCM share payload. </p></td>
                 </tr>
@@ -8925,6 +8971,171 @@ <h3 id="cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse">CreateOCMCoreShareRespo
 
         
       
+        <h3 id="cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest">DeleteOCMCoreShareRequest</h3>
+        <p></p>
+
+        
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>id</td>
+                  <td><a href="#string">string</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+Unique ID to identify the share at the consumer side. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>opaque</td>
+                  <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Opaque information. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
+
+        
+      
+        <h3 id="cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse">DeleteOCMCoreShareResponse</h3>
+        <p></p>
+
+        
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>status</td>
+                  <td><a href="#cs3.rpc.v1beta1.Status">cs3.rpc.v1beta1.Status</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+The response status. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>opaque</td>
+                  <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Opaque information. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
+
+        
+      
+        <h3 id="cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest">UpdateOCMCoreShareRequest</h3>
+        <p></p>
+
+        
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>opaque</td>
+                  <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Opaque information. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>ocm_share_id</td>
+                  <td><a href="#string">string</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+Unique ID to identify the share at the consumer side. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>description</td>
+                  <td><a href="#string">string</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Description for the share. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>share_type</td>
+                  <td><a href="#cs3.sharing.ocm.v1beta1.ShareType">cs3.sharing.ocm.v1beta1.ShareType</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Recipient share type. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>expiration</td>
+                  <td><a href="#cs3.types.v1beta1.Timestamp">cs3.types.v1beta1.Timestamp</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+The expiration time for the OCM share. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>protocols</td>
+                  <td><a href="#cs3.sharing.ocm.v1beta1.Protocol">cs3.sharing.ocm.v1beta1.Protocol</a></td>
+                  <td>repeated</td>
+                  <td><p>OPTIONAL.
+The protocols which are used to establish synchronisation,
+with their access rights. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
+
+        
+      
+        <h3 id="cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse">UpdateOCMCoreShareResponse</h3>
+        <p></p>
+
+        
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>status</td>
+                  <td><a href="#cs3.rpc.v1beta1.Status">cs3.rpc.v1beta1.Status</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+The response status. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>opaque</td>
+                  <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Opaque information. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
+
+        
+      
 
       
 
@@ -8932,7 +9143,7 @@ <h3 id="cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse">CreateOCMCoreShareRespo
 
       
         <h3 id="cs3.ocm.core.v1beta1.OcmCoreAPI">OcmCoreAPI</h3>
-        <p>OCM Core API</p><p>The OCM Core API is the mapping in GRPC of the OCM core protocol.</p><p>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL</p><p>NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and</p><p>"OPTIONAL" in this document are to be interpreted as described in</p><p>RFC 2119.</p><p>The following are global requirements that apply to all methods:</p><p>Any method MUST return CODE_OK on a succesful operation.</p><p>Any method MAY return NOT_IMPLEMENTED.</p><p>Any method MAY return INTERNAL.</p><p>Any method MAY return UNKNOWN.</p><p>Any method MAY return UNAUTHENTICATED.</p>
+        <p>OCM Core API</p><p>the OCM Core API is the mapping for the local system of the OCM protocol,</p><p>including multi-protocol shares. Implementations are expected to expose</p><p>the `/ocm` endpoints according to the OCM API, and in response to those</p><p>endpoints implement the following API.</p><p>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL</p><p>NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and</p><p>"OPTIONAL" in this document are to be interpreted as described in</p><p>RFC 2119.</p><p>The following are global requirements that apply to all methods:</p><p>Any method MUST return CODE_OK on a succesful operation.</p><p>Any method MAY return NOT_IMPLEMENTED.</p><p>Any method MAY return INTERNAL.</p><p>Any method MAY return UNKNOWN.</p><p>Any method MAY return UNAUTHENTICATED.</p>
         <table class="enum-table">
           <thead>
             <tr><td>Method Name</td><td>Request Type</td><td>Response Type</td><td>Description</td></tr>
@@ -8943,7 +9154,24 @@ <h3 id="cs3.ocm.core.v1beta1.OcmCoreAPI">OcmCoreAPI</h3>
                 <td>CreateOCMCoreShare</td>
                 <td><a href="#cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest">CreateOCMCoreShareRequest</a></td>
                 <td><a href="#cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse">CreateOCMCoreShareResponse</a></td>
-                <td><p>Creates a new ocm share.</p></td>
+                <td><p>Creates a new OCM share, in response to a call from remote to:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1shares/post</p></td>
+              </tr>
+            
+              <tr>
+                <td>UpdateOCMCoreShare</td>
+                <td><a href="#cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest">UpdateOCMCoreShareRequest</a></td>
+                <td><a href="#cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse">UpdateOCMCoreShareResponse</a></td>
+                <td><p>Updates an OCM share, in response to a notification from the remote system to:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1notifications/post</p></td>
+              </tr>
+            
+              <tr>
+                <td>DeleteOCMCoreShare</td>
+                <td><a href="#cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest">DeleteOCMCoreShareRequest</a></td>
+                <td><a href="#cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse">DeleteOCMCoreShareResponse</a></td>
+                <td><p>Deletes an OCM share, in response to a notification from the remote system to:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1notifications/post</p></td>
               </tr>
             
           </tbody>
@@ -9056,6 +9284,72 @@ <h3 id="cs3.ocm.invite.v1beta1.AcceptInviteResponse">AcceptInviteResponse</h3>
 
         
       
+        <h3 id="cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest">DeleteAcceptedUserRequest</h3>
+        <p></p>
+
+        
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>opaque</td>
+                  <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Opaque information. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>remote_user_id</td>
+                  <td><a href="#cs3.identity.user.v1beta1.UserId">cs3.identity.user.v1beta1.UserId</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+The id of the user. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
+
+        
+      
+        <h3 id="cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse">DeleteAcceptedUserResponse</h3>
+        <p></p>
+
+        
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>status</td>
+                  <td><a href="#cs3.rpc.v1beta1.Status">cs3.rpc.v1beta1.Status</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+The response status. </p></td>
+                </tr>
+              
+                <tr>
+                  <td>opaque</td>
+                  <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
+                  <td></td>
+                  <td><p>OPTIONAL.
+Opaque information. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
+
+        
+      
         <h3 id="cs3.ocm.invite.v1beta1.FindAcceptedUsersRequest">FindAcceptedUsersRequest</h3>
         <p></p>
 
@@ -9423,7 +9717,7 @@ <h3 id="cs3.ocm.invite.v1beta1.ListInviteTokensResponse">ListInviteTokensRespons
 
       
         <h3 id="cs3.ocm.invite.v1beta1.InviteAPI">InviteAPI</h3>
-        <p>Invite API</p><p>The Invite API is meant to invite users and groups belonging to other</p><p>sync'n'share systems, so that collaboration of resources can be enabled.</p><p>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL</p><p>NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and</p><p>"OPTIONAL" in this document are to be interpreted as described in</p><p>RFC 2119.</p><p>The following are global requirements that apply to all methods:</p><p>Any method MUST return CODE_OK on a succesful operation.</p><p>Any method MAY return NOT_IMPLEMENTED.</p><p>Any method MAY return INTERNAL.</p><p>Any method MAY return UNKNOWN.</p><p>Any method MAY return UNAUTHENTICATED.</p>
+        <p>Invite API</p><p>The Invite API is meant to invite users and groups belonging to other</p><p>sync'n'share systems, so that collaboration of resources can be enabled.</p><p>The following APIs match the OCM v1.1 spec for the /invite-accepted endpoint.</p><p>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL</p><p>NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and</p><p>"OPTIONAL" in this document are to be interpreted as described in</p><p>RFC 2119.</p><p>The following are global requirements that apply to all methods:</p><p>Any method MUST return CODE_OK on a succesful operation.</p><p>Any method MAY return NOT_IMPLEMENTED.</p><p>Any method MAY return INTERNAL.</p><p>Any method MAY return UNKNOWN.</p><p>Any method MAY return UNAUTHENTICATED.</p>
         <table class="enum-table">
           <thead>
             <tr><td>Method Name</td><td>Request Type</td><td>Response Type</td><td>Description</td></tr>
@@ -9448,7 +9742,9 @@ <h3 id="cs3.ocm.invite.v1beta1.InviteAPI">InviteAPI</h3>
                 <td>ForwardInvite</td>
                 <td><a href="#cs3.ocm.invite.v1beta1.ForwardInviteRequest">ForwardInviteRequest</a></td>
                 <td><a href="#cs3.ocm.invite.v1beta1.ForwardInviteResponse">ForwardInviteResponse</a></td>
-                <td><p>Forwards a received invite to the sync&#39;n&#39;share system provider.
+                <td><p>Forwards a received invite to the remote sync&#39;n&#39;share system provider. The remote
+system SHALL get an `invite-accepted` call as follows:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1invite-accepted/post
 MUST return CODE_NOT_FOUND if the token does not exist.
 MUST return CODE_INVALID_ARGUMENT if the token expired.
 MUST return CODE_ALREADY_EXISTS if the user already accepted an invite.
@@ -9480,6 +9776,14 @@ <h3 id="cs3.ocm.invite.v1beta1.InviteAPI">InviteAPI</h3>
                 <td><p>Finds users who accepted invite tokens by their attributes.</p></td>
               </tr>
             
+              <tr>
+                <td>DeleteAcceptedUser</td>
+                <td><a href="#cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest">DeleteAcceptedUserRequest</a></td>
+                <td><a href="#cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse">DeleteAcceptedUserResponse</a></td>
+                <td><p>Delete a previously accepted remote user, that is unfriend that user.
+MUST return CODE_NOT_FOUND if the user does not exist.</p></td>
+              </tr>
+            
           </tbody>
         </table>
 
@@ -13270,9 +13574,7 @@ <h3 id="cs3.sharing.ocm.v1beta1.UpdateOCMShareRequest">UpdateOCMShareRequest</h3
                   <td><a href="#cs3.types.v1beta1.Opaque">cs3.types.v1beta1.Opaque</a></td>
                   <td></td>
                   <td><p>OPTIONAL.
-Opaque information.
-
-REQUIRED. </p></td>
+Opaque information. </p></td>
                 </tr>
               
                 <tr>
@@ -13285,7 +13587,7 @@ <h3 id="cs3.sharing.ocm.v1beta1.UpdateOCMShareRequest">UpdateOCMShareRequest</h3
                 <tr>
                   <td>field</td>
                   <td><a href="#cs3.sharing.ocm.v1beta1.UpdateOCMShareRequest.UpdateField">UpdateOCMShareRequest.UpdateField</a></td>
-                  <td></td>
+                  <td>repeated</td>
                   <td><p> </p></td>
                 </tr>
               
@@ -13307,17 +13609,17 @@ <h3 id="cs3.sharing.ocm.v1beta1.UpdateOCMShareRequest.UpdateField">UpdateOCMShar
             <tbody>
               
                 <tr>
-                  <td>permissions</td>
-                  <td><a href="#cs3.sharing.ocm.v1beta1.SharePermissions">SharePermissions</a></td>
+                  <td>expiration</td>
+                  <td><a href="#cs3.types.v1beta1.Timestamp">cs3.types.v1beta1.Timestamp</a></td>
                   <td></td>
-                  <td><p>Update the permissions. </p></td>
+                  <td><p>Update the expiration. </p></td>
                 </tr>
               
                 <tr>
-                  <td>display_name</td>
-                  <td><a href="#string">string</a></td>
+                  <td>access_methods</td>
+                  <td><a href="#cs3.sharing.ocm.v1beta1.AccessMethod">AccessMethod</a></td>
                   <td></td>
-                  <td><p>Update the display name. </p></td>
+                  <td><p>Update access methods. </p></td>
                 </tr>
               
             </tbody>
@@ -13494,7 +13796,7 @@ <h3 id="cs3.sharing.ocm.v1beta1.ListOCMSharesRequest.Filter.Type">ListOCMSharesR
 
       
         <h3 id="cs3.sharing.ocm.v1beta1.OcmAPI">OcmAPI</h3>
-        <p>OCM Share Provider API</p><p>The OCM Share Provider API is meant to manipulate share</p><p>resources from the perspective of the creator or the share and</p><p>from the perspective of the receiver of the share.</p><p>The following APIs match the OCM v1.1 spec, including the invitation</p><p>workflow and multi-protocol shares.</p><p>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL</p><p>NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and</p><p>"OPTIONAL" in this document are to be interpreted as described in</p><p>RFC 2119.</p><p>The following are global requirements that apply to all methods:</p><p>Any method MUST return CODE_OK on a succesful operation.</p><p>Any method MAY return NOT_IMPLEMENTED.</p><p>Any method MAY return INTERNAL.</p><p>Any method MAY return UNKNOWN.</p><p>Any method MAY return UNAUTHENTICATED.</p>
+        <p>OCM Share Provider API</p><p>The OCM Share Provider API is meant to manipulate share</p><p>resources from the perspective of the creator or the share and</p><p>from the perspective of the receiver of the share.</p><p>The following APIs match the OCM v1.1 spec including multi-protocol shares.</p><p>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL</p><p>NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and</p><p>"OPTIONAL" in this document are to be interpreted as described in</p><p>RFC 2119.</p><p>The following are global requirements that apply to all methods:</p><p>Any method MUST return CODE_OK on a succesful operation.</p><p>Any method MAY return NOT_IMPLEMENTED.</p><p>Any method MAY return INTERNAL.</p><p>Any method MAY return UNKNOWN.</p><p>Any method MAY return UNAUTHENTICATED.</p>
         <table class="enum-table">
           <thead>
             <tr><td>Method Name</td><td>Request Type</td><td>Response Type</td><td>Description</td></tr>
@@ -13509,7 +13811,9 @@ <h3 id="cs3.sharing.ocm.v1beta1.OcmAPI">OcmAPI</h3>
 MUST return CODE_NOT_FOUND if the resource reference does not exist.
 MUST return CODE_ALREADY_EXISTS if the share already exists for the 4-tuple consisting of
 (owner, shared_resource, grantee).
-New shares MUST be created in the state SHARE_STATE_PENDING.</p></td>
+New shares MUST be created in the state SHARE_STATE_PENDING, and MUST be sent
+to the remote system using the OCM API at:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1shares/post</p></td>
               </tr>
             
               <tr>
@@ -13517,7 +13821,10 @@ <h3 id="cs3.sharing.ocm.v1beta1.OcmAPI">OcmAPI</h3>
                 <td><a href="#cs3.sharing.ocm.v1beta1.RemoveOCMShareRequest">RemoveOCMShareRequest</a></td>
                 <td><a href="#cs3.sharing.ocm.v1beta1.RemoveOCMShareResponse">RemoveOCMShareResponse</a></td>
                 <td><p>Removes a share.
-MUST return CODE_NOT_FOUND if the share reference does not exist.</p></td>
+MUST return CODE_NOT_FOUND if the share reference does not exist.
+This action SHALL be notified to the remote system
+using the OCM API at:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1notifications/post</p></td>
               </tr>
             
               <tr>
@@ -13550,7 +13857,10 @@ <h3 id="cs3.sharing.ocm.v1beta1.OcmAPI">OcmAPI</h3>
                 <td><a href="#cs3.sharing.ocm.v1beta1.UpdateOCMShareRequest">UpdateOCMShareRequest</a></td>
                 <td><a href="#cs3.sharing.ocm.v1beta1.UpdateOCMShareResponse">UpdateOCMShareResponse</a></td>
                 <td><p>Updates a share.
-MUST return CODE_NOT_FOUND if the share reference does not exist.</p></td>
+MUST return CODE_NOT_FOUND if the share reference does not exist.
+This action SHALL be notified to the remote system
+using the OCM API at:
+https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&amp;repo=OCM-API&amp;user=cs3org#/paths/~1notifications/post</p></td>
               </tr>
             
               <tr>
@@ -13589,7 +13899,7 @@ <h2 id="cs3/sharing/ocm/v1beta1/resources.proto">cs3/sharing/ocm/v1beta1/resourc
 
       
         <h3 id="cs3.sharing.ocm.v1beta1.AccessMethod">AccessMethod</h3>
-        <p>Defines how the recipient accesses the share.</p>
+        <p>Defines how the recipient accesses an incoming remote OCM share.</p>
 
         
           <table class="field-table">
@@ -13635,7 +13945,7 @@ <h3 id="cs3.sharing.ocm.v1beta1.AccessMethod">AccessMethod</h3>
         
       
         <h3 id="cs3.sharing.ocm.v1beta1.Protocol">Protocol</h3>
-        <p>The protocol which is used to establish synchronisation.</p>
+        <p>The protocol which is used to give access to a remote OCM user.</p>
 
         
           <table class="field-table">
@@ -14121,6 +14431,24 @@ <h3 id="cs3.sharing.ocm.v1beta1.TransferAccessMethod">TransferAccessMethod</h3>
         <p>Defines the options for the Transfer access method.</p>
 
         
+          <table class="field-table">
+            <thead>
+              <tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
+            </thead>
+            <tbody>
+              
+                <tr>
+                  <td>destination</td>
+                  <td><a href="#cs3.storage.provider.v1beta1.Reference">cs3.storage.provider.v1beta1.Reference</a></td>
+                  <td></td>
+                  <td><p>REQUIRED.
+The destination path of the data transfer. </p></td>
+                </tr>
+              
+            </tbody>
+          </table>
+
+          
 
         
       
diff --git a/proto.lock b/proto.lock
index a322648..480a351 100644
--- a/proto.lock
+++ b/proto.lock
@@ -2403,6 +2403,11 @@
                 "in_type": "cs3.ocm.invite.v1beta1.FindAcceptedUsersRequest",
                 "out_type": "cs3.ocm.invite.v1beta1.FindAcceptedUsersResponse"
               },
+              {
+                "name": "DeleteAcceptedUser",
+                "in_type": "cs3.ocm.invite.v1beta1.DeleteAcceptedUserRequest",
+                "out_type": "cs3.ocm.invite.v1beta1.DeleteAcceptedUserResponse"
+              },
               {
                 "name": "IsProviderAllowed",
                 "in_type": "cs3.ocm.provider.v1beta1.IsProviderAllowedRequest",
@@ -2423,6 +2428,16 @@
                 "in_type": "cs3.ocm.core.v1beta1.CreateOCMCoreShareRequest",
                 "out_type": "cs3.ocm.core.v1beta1.CreateOCMCoreShareResponse"
               },
+              {
+                "name": "UpdateOCMCoreShare",
+                "in_type": "cs3.ocm.core.v1beta1.UpdateOCMCoreShareRequest",
+                "out_type": "cs3.ocm.core.v1beta1.UpdateOCMCoreShareResponse"
+              },
+              {
+                "name": "DeleteOCMCoreShare",
+                "in_type": "cs3.ocm.core.v1beta1.DeleteOCMCoreShareRequest",
+                "out_type": "cs3.ocm.core.v1beta1.DeleteOCMCoreShareResponse"
+              },
               {
                 "name": "CreateTransfer",
                 "in_type": "cs3.tx.v1beta1.CreateTransferRequest",
@@ -3544,6 +3559,87 @@
                 "type": "cs3.types.v1beta1.Timestamp"
               }
             ]
+          },
+          {
+            "name": "UpdateOCMCoreShareRequest",
+            "fields": [
+              {
+                "id": 1,
+                "name": "opaque",
+                "type": "cs3.types.v1beta1.Opaque"
+              },
+              {
+                "id": 2,
+                "name": "ocm_share_id",
+                "type": "string"
+              },
+              {
+                "id": 3,
+                "name": "description",
+                "type": "string"
+              },
+              {
+                "id": 5,
+                "name": "share_type",
+                "type": "cs3.sharing.ocm.v1beta1.ShareType"
+              },
+              {
+                "id": 6,
+                "name": "expiration",
+                "type": "cs3.types.v1beta1.Timestamp"
+              },
+              {
+                "id": 7,
+                "name": "protocols",
+                "type": "cs3.sharing.ocm.v1beta1.Protocol",
+                "is_repeated": true
+              }
+            ]
+          },
+          {
+            "name": "UpdateOCMCoreShareResponse",
+            "fields": [
+              {
+                "id": 1,
+                "name": "status",
+                "type": "cs3.rpc.v1beta1.Status"
+              },
+              {
+                "id": 2,
+                "name": "opaque",
+                "type": "cs3.types.v1beta1.Opaque"
+              }
+            ]
+          },
+          {
+            "name": "DeleteOCMCoreShareRequest",
+            "fields": [
+              {
+                "id": 1,
+                "name": "id",
+                "type": "string"
+              },
+              {
+                "id": 2,
+                "name": "opaque",
+                "type": "cs3.types.v1beta1.Opaque"
+              }
+            ]
+          },
+          {
+            "name": "DeleteOCMCoreShareResponse",
+            "fields": [
+              {
+                "id": 1,
+                "name": "status",
+                "type": "cs3.rpc.v1beta1.Status"
+              },
+              {
+                "id": 2,
+                "name": "opaque",
+                "type": "cs3.types.v1beta1.Opaque"
+              }
+            ]
           }
         ],
         "services": [
@@ -3554,6 +3650,16 @@
                 "name": "CreateOCMCoreShare",
                 "in_type": "CreateOCMCoreShareRequest",
                 "out_type": "CreateOCMCoreShareResponse"
+              },
+              {
+                "name": "UpdateOCMCoreShare",
+                "in_type": "UpdateOCMCoreShareRequest",
+                "out_type": "UpdateOCMCoreShareResponse"
+              },
+              {
+                "name": "DeleteOCMCoreShare",
+                "in_type": "DeleteOCMCoreShareRequest",
+                "out_type": "DeleteOCMCoreShareResponse"
               }
             ]
           }
@@ -3838,6 +3944,36 @@
                 "is_repeated": true
               }
             ]
+          },
+          {
+            "name": "DeleteAcceptedUserRequest",
+            "fields": [
+              {
+                "id": 1,
+                "name": "opaque",
+                "type": "cs3.types.v1beta1.Opaque"
+              },
+              {
+                "id": 2,
+                "name": "remote_user_id",
+                "type": "cs3.identity.user.v1beta1.UserId"
+              }
+            ]
+          },
+          {
+            "name": "DeleteAcceptedUserResponse",
+            "fields": [
+              {
+                "id": 1,
+                "name": "status",
+                "type": "cs3.rpc.v1beta1.Status"
+              },
+              {
+                "id": 2,
+                "name": "opaque",
+                "type": "cs3.types.v1beta1.Opaque"
+              }
+            ]
           }
         ],
         "services": [
@@ -3873,6 +4009,11 @@
                 "name": "FindAcceptedUsers",
                 "in_type": "FindAcceptedUsersRequest",
                 "out_type": "FindAcceptedUsersResponse"
+              },
+              {
+                "name": "DeleteAcceptedUser",
+                "in_type": "DeleteAcceptedUserRequest",
+                "out_type": "DeleteAcceptedUserResponse"
               }
             ]
           }
@@ -4754,6 +4895,10 @@
               {
                 "name": "CODE_INSUFFICIENT_STORAGE",
                 "integer": 19
+              },
+              {
+                "name": "CODE_LOCKED",
+                "integer": 20
               }
             ]
           }
@@ -6451,7 +6596,8 @@
               {
                 "id": 3,
                 "name": "field",
-                "type": "UpdateField"
+                "type": "UpdateField",
+                "is_repeated": true
               }
             ],
             "messages": [
@@ -6459,14 +6605,14 @@
                 "name": "UpdateField",
                 "fields": [
                   {
-                    "id": 2,
-                    "name": "permissions",
-                    "type": "SharePermissions"
+                    "id": 1,
+                    "name": "expiration",
+                    "type": "cs3.types.v1beta1.Timestamp"
                   },
                   {
-                    "id": 3,
-                    "name": "display_name",
-                    "type": "string"
+                    "id": 2,
+                    "name": "access_methods",
+                    "type": "AccessMethod"
                   }
                 ]
               }
@@ -7261,7 +7407,7 @@
             "name": "WebDAVAccessMethod",
             "fields": [
               {
-                "id": 2,
+                "id": 1,
                 "name": "permissions",
                 "type": "storage.provider.v1beta1.ResourcePermissions"
               }
@@ -7271,14 +7417,21 @@
             "name": "WebappAccessMethod",
             "fields": [
               {
-                "id": 2,
+                "id": 1,
                 "name": "view_mode",
                 "type": "cs3.app.provider.v1beta1.ViewMode"
               }
             ]
           },
           {
-            "name": "TransferAccessMethod"
+            "name": "TransferAccessMethod",
+            "fields": [
+              {
+                "id": 1,
+                "name": "destination",
+                "type": "storage.provider.v1beta1.Reference"
+              }
+            ]
           }
         ],
         "imports": [