diff --git a/packages/google-cloud-parallelstore/protos/google/cloud/parallelstore/v1beta/parallelstore.proto b/packages/google-cloud-parallelstore/protos/google/cloud/parallelstore/v1beta/parallelstore.proto
index 743dd57a3f5..0114beec790 100644
--- a/packages/google-cloud-parallelstore/protos/google/cloud/parallelstore/v1beta/parallelstore.proto
+++ b/packages/google-cloud-parallelstore/protos/google/cloud/parallelstore/v1beta/parallelstore.proto
@@ -41,6 +41,10 @@ option (google.api.resource_definition) = {
   type: "compute.googleapis.com/Address"
   pattern: "projects/{project}/regions/{region}/addresses/{address}"
 };
+option (google.api.resource_definition) = {
+  type: "iam.googleapis.com/ServiceAccount"
+  pattern: "projects/{project}/serviceAccounts/{service_account}"
+};
 
 // Service describing handlers for resources
 // Configures and manages parallelstore resources.
@@ -517,6 +521,18 @@ message ImportDataRequest {
     (google.api.field_info).format = UUID4,
     (google.api.field_behavior) = OPTIONAL
   ];
+
+  // Optional. User-specified Service Account (SA) credentials to be used when
+  // performing the transfer.
+  // Format: `projects/{project_id}/serviceAccounts/{service_account}`
+  // If unspecified, the Parallelstore service agent is used:
+  // service-<PROJECT_NUMBER>@gcp-sa-parallelstore.iam.gserviceaccount.com)
+  string service_account = 5 [
+    (google.api.field_behavior) = OPTIONAL,
+    (google.api.resource_reference) = {
+      type: "iam.googleapis.com/ServiceAccount"
+    }
+  ];
 }
 
 // Message representing the request exporting data from Cloud Storage to
@@ -559,6 +575,18 @@ message ExportDataRequest {
     (google.api.field_info).format = UUID4,
     (google.api.field_behavior) = OPTIONAL
   ];
+
+  // Optional. User-specified Service Account (SA) credentials to be used when
+  // performing the transfer.
+  // Format: `projects/{project_id}/serviceAccounts/{service_account}`
+  // If unspecified, the Parallelstore service agent is used:
+  // service-<PROJECT_NUMBER>@gcp-sa-parallelstore.iam.gserviceaccount.com)
+  string service_account = 5 [
+    (google.api.field_behavior) = OPTIONAL,
+    (google.api.resource_reference) = {
+      type: "iam.googleapis.com/ServiceAccount"
+    }
+  ];
 }
 
 // ImportDataResponse is the response returned from ImportData rpc.
diff --git a/packages/google-cloud-parallelstore/protos/protos.d.ts b/packages/google-cloud-parallelstore/protos/protos.d.ts
index 4f62d4136d0..6ee2f9d043c 100644
--- a/packages/google-cloud-parallelstore/protos/protos.d.ts
+++ b/packages/google-cloud-parallelstore/protos/protos.d.ts
@@ -1568,6 +1568,9 @@ export namespace google {
 
                     /** ImportDataRequest requestId */
                     requestId?: (string|null);
+
+                    /** ImportDataRequest serviceAccount */
+                    serviceAccount?: (string|null);
                 }
 
                 /** Represents an ImportDataRequest. */
@@ -1591,6 +1594,9 @@ export namespace google {
                     /** ImportDataRequest requestId. */
                     public requestId: string;
 
+                    /** ImportDataRequest serviceAccount. */
+                    public serviceAccount: string;
+
                     /** ImportDataRequest source. */
                     public source?: "sourceGcsBucket";
 
@@ -1689,6 +1695,9 @@ export namespace google {
 
                     /** ExportDataRequest requestId */
                     requestId?: (string|null);
+
+                    /** ExportDataRequest serviceAccount */
+                    serviceAccount?: (string|null);
                 }
 
                 /** Represents an ExportDataRequest. */
@@ -1712,6 +1721,9 @@ export namespace google {
                     /** ExportDataRequest requestId. */
                     public requestId: string;
 
+                    /** ExportDataRequest serviceAccount. */
+                    public serviceAccount: string;
+
                     /** ExportDataRequest source. */
                     public source?: "sourceParallelstore";
 
diff --git a/packages/google-cloud-parallelstore/protos/protos.js b/packages/google-cloud-parallelstore/protos/protos.js
index 1469a82bcbb..b5e8fd89e28 100644
--- a/packages/google-cloud-parallelstore/protos/protos.js
+++ b/packages/google-cloud-parallelstore/protos/protos.js
@@ -3662,6 +3662,7 @@
                          * @property {google.cloud.parallelstore.v1beta.IDestinationParallelstore|null} [destinationParallelstore] ImportDataRequest destinationParallelstore
                          * @property {string|null} [name] ImportDataRequest name
                          * @property {string|null} [requestId] ImportDataRequest requestId
+                         * @property {string|null} [serviceAccount] ImportDataRequest serviceAccount
                          */
     
                         /**
@@ -3711,6 +3712,14 @@
                          */
                         ImportDataRequest.prototype.requestId = "";
     
+                        /**
+                         * ImportDataRequest serviceAccount.
+                         * @member {string} serviceAccount
+                         * @memberof google.cloud.parallelstore.v1beta.ImportDataRequest
+                         * @instance
+                         */
+                        ImportDataRequest.prototype.serviceAccount = "";
+    
                         // OneOf field names bound to virtual getters and setters
                         var $oneOfFields;
     
@@ -3768,6 +3777,8 @@
                                 $root.google.cloud.parallelstore.v1beta.DestinationParallelstore.encode(message.destinationParallelstore, writer.uint32(/* id 3, wireType 2 =*/26).fork()).ldelim();
                             if (message.requestId != null && Object.hasOwnProperty.call(message, "requestId"))
                                 writer.uint32(/* id 4, wireType 2 =*/34).string(message.requestId);
+                            if (message.serviceAccount != null && Object.hasOwnProperty.call(message, "serviceAccount"))
+                                writer.uint32(/* id 5, wireType 2 =*/42).string(message.serviceAccount);
                             return writer;
                         };
     
@@ -3818,6 +3829,10 @@
                                         message.requestId = reader.string();
                                         break;
                                     }
+                                case 5: {
+                                        message.serviceAccount = reader.string();
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -3876,6 +3891,9 @@
                             if (message.requestId != null && message.hasOwnProperty("requestId"))
                                 if (!$util.isString(message.requestId))
                                     return "requestId: string expected";
+                            if (message.serviceAccount != null && message.hasOwnProperty("serviceAccount"))
+                                if (!$util.isString(message.serviceAccount))
+                                    return "serviceAccount: string expected";
                             return null;
                         };
     
@@ -3905,6 +3923,8 @@
                                 message.name = String(object.name);
                             if (object.requestId != null)
                                 message.requestId = String(object.requestId);
+                            if (object.serviceAccount != null)
+                                message.serviceAccount = String(object.serviceAccount);
                             return message;
                         };
     
@@ -3924,6 +3944,7 @@
                             if (options.defaults) {
                                 object.name = "";
                                 object.requestId = "";
+                                object.serviceAccount = "";
                             }
                             if (message.name != null && message.hasOwnProperty("name"))
                                 object.name = message.name;
@@ -3939,6 +3960,8 @@
                             }
                             if (message.requestId != null && message.hasOwnProperty("requestId"))
                                 object.requestId = message.requestId;
+                            if (message.serviceAccount != null && message.hasOwnProperty("serviceAccount"))
+                                object.serviceAccount = message.serviceAccount;
                             return object;
                         };
     
@@ -3981,6 +4004,7 @@
                          * @property {google.cloud.parallelstore.v1beta.IDestinationGcsBucket|null} [destinationGcsBucket] ExportDataRequest destinationGcsBucket
                          * @property {string|null} [name] ExportDataRequest name
                          * @property {string|null} [requestId] ExportDataRequest requestId
+                         * @property {string|null} [serviceAccount] ExportDataRequest serviceAccount
                          */
     
                         /**
@@ -4030,6 +4054,14 @@
                          */
                         ExportDataRequest.prototype.requestId = "";
     
+                        /**
+                         * ExportDataRequest serviceAccount.
+                         * @member {string} serviceAccount
+                         * @memberof google.cloud.parallelstore.v1beta.ExportDataRequest
+                         * @instance
+                         */
+                        ExportDataRequest.prototype.serviceAccount = "";
+    
                         // OneOf field names bound to virtual getters and setters
                         var $oneOfFields;
     
@@ -4087,6 +4119,8 @@
                                 $root.google.cloud.parallelstore.v1beta.DestinationGcsBucket.encode(message.destinationGcsBucket, writer.uint32(/* id 3, wireType 2 =*/26).fork()).ldelim();
                             if (message.requestId != null && Object.hasOwnProperty.call(message, "requestId"))
                                 writer.uint32(/* id 4, wireType 2 =*/34).string(message.requestId);
+                            if (message.serviceAccount != null && Object.hasOwnProperty.call(message, "serviceAccount"))
+                                writer.uint32(/* id 5, wireType 2 =*/42).string(message.serviceAccount);
                             return writer;
                         };
     
@@ -4137,6 +4171,10 @@
                                         message.requestId = reader.string();
                                         break;
                                     }
+                                case 5: {
+                                        message.serviceAccount = reader.string();
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -4195,6 +4233,9 @@
                             if (message.requestId != null && message.hasOwnProperty("requestId"))
                                 if (!$util.isString(message.requestId))
                                     return "requestId: string expected";
+                            if (message.serviceAccount != null && message.hasOwnProperty("serviceAccount"))
+                                if (!$util.isString(message.serviceAccount))
+                                    return "serviceAccount: string expected";
                             return null;
                         };
     
@@ -4224,6 +4265,8 @@
                                 message.name = String(object.name);
                             if (object.requestId != null)
                                 message.requestId = String(object.requestId);
+                            if (object.serviceAccount != null)
+                                message.serviceAccount = String(object.serviceAccount);
                             return message;
                         };
     
@@ -4243,6 +4286,7 @@
                             if (options.defaults) {
                                 object.name = "";
                                 object.requestId = "";
+                                object.serviceAccount = "";
                             }
                             if (message.name != null && message.hasOwnProperty("name"))
                                 object.name = message.name;
@@ -4258,6 +4302,8 @@
                             }
                             if (message.requestId != null && message.hasOwnProperty("requestId"))
                                 object.requestId = message.requestId;
+                            if (message.serviceAccount != null && message.hasOwnProperty("serviceAccount"))
+                                object.serviceAccount = message.serviceAccount;
                             return object;
                         };
     
diff --git a/packages/google-cloud-parallelstore/protos/protos.json b/packages/google-cloud-parallelstore/protos/protos.json
index 3158349e1c5..8d58ffa556b 100644
--- a/packages/google-cloud-parallelstore/protos/protos.json
+++ b/packages/google-cloud-parallelstore/protos/protos.json
@@ -15,8 +15,8 @@
                     "java_package": "com.google.cloud.parallelstore.v1beta",
                     "php_namespace": "Google\\Cloud\\Parallelstore\\V1beta",
                     "ruby_package": "Google::Cloud::Parallelstore::V1beta",
-                    "(google.api.resource_definition).type": "compute.googleapis.com/Address",
-                    "(google.api.resource_definition).pattern": "projects/{project}/regions/{region}/addresses/{address}"
+                    "(google.api.resource_definition).type": "iam.googleapis.com/ServiceAccount",
+                    "(google.api.resource_definition).pattern": "projects/{project}/serviceAccounts/{service_account}"
                   },
                   "nested": {
                     "Parallelstore": {
@@ -591,6 +591,14 @@
                             "(google.api.field_info).format": "UUID4",
                             "(google.api.field_behavior)": "OPTIONAL"
                           }
+                        },
+                        "serviceAccount": {
+                          "type": "string",
+                          "id": 5,
+                          "options": {
+                            "(google.api.field_behavior)": "OPTIONAL",
+                            "(google.api.resource_reference).type": "iam.googleapis.com/ServiceAccount"
+                          }
                         }
                       }
                     },
@@ -631,6 +639,14 @@
                             "(google.api.field_info).format": "UUID4",
                             "(google.api.field_behavior)": "OPTIONAL"
                           }
+                        },
+                        "serviceAccount": {
+                          "type": "string",
+                          "id": 5,
+                          "options": {
+                            "(google.api.field_behavior)": "OPTIONAL",
+                            "(google.api.resource_reference).type": "iam.googleapis.com/ServiceAccount"
+                          }
                         }
                       }
                     },
diff --git a/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.export_data.js b/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.export_data.js
index 5f6235295f5..58e0f745ca5 100644
--- a/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.export_data.js
+++ b/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.export_data.js
@@ -54,6 +54,14 @@ function main(name) {
    *  not supported (00000000-0000-0000-0000-000000000000).
    */
   // const requestId = 'abc123'
+  /**
+   *  Optional. User-specified Service Account (SA) credentials to be used when
+   *  performing the transfer.
+   *  Format: `projects/{project_id}/serviceAccounts/{service_account}`
+   *  If unspecified, the Parallelstore service agent is used:
+   *  service-<PROJECT_NUMBER>@gcp-sa-parallelstore.iam.gserviceaccount.com)
+   */
+  // const serviceAccount = 'abc123'
 
   // Imports the Parallelstore library
   const {ParallelstoreClient} = require('@google-cloud/parallelstore').v1beta;
diff --git a/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.import_data.js b/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.import_data.js
index 4e155295097..1a3591f45f2 100644
--- a/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.import_data.js
+++ b/packages/google-cloud-parallelstore/samples/generated/v1beta/parallelstore.import_data.js
@@ -54,6 +54,14 @@ function main(name) {
    *  not supported (00000000-0000-0000-0000-000000000000).
    */
   // const requestId = 'abc123'
+  /**
+   *  Optional. User-specified Service Account (SA) credentials to be used when
+   *  performing the transfer.
+   *  Format: `projects/{project_id}/serviceAccounts/{service_account}`
+   *  If unspecified, the Parallelstore service agent is used:
+   *  service-<PROJECT_NUMBER>@gcp-sa-parallelstore.iam.gserviceaccount.com)
+   */
+  // const serviceAccount = 'abc123'
 
   // Imports the Parallelstore library
   const {ParallelstoreClient} = require('@google-cloud/parallelstore').v1beta;
diff --git a/packages/google-cloud-parallelstore/samples/generated/v1beta/snippet_metadata_google.cloud.parallelstore.v1beta.json b/packages/google-cloud-parallelstore/samples/generated/v1beta/snippet_metadata_google.cloud.parallelstore.v1beta.json
index f02ed662bba..31a0ad6a8d6 100644
--- a/packages/google-cloud-parallelstore/samples/generated/v1beta/snippet_metadata_google.cloud.parallelstore.v1beta.json
+++ b/packages/google-cloud-parallelstore/samples/generated/v1beta/snippet_metadata_google.cloud.parallelstore.v1beta.json
@@ -262,7 +262,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 76,
+                    "end": 84,
                     "type": "FULL"
                 }
             ],
@@ -286,6 +286,10 @@
                     {
                         "name": "request_id",
                         "type": "TYPE_STRING"
+                    },
+                    {
+                        "name": "service_account",
+                        "type": "TYPE_STRING"
                     }
                 ],
                 "resultType": ".google.longrunning.Operation",
@@ -314,7 +318,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 76,
+                    "end": 84,
                     "type": "FULL"
                 }
             ],
@@ -338,6 +342,10 @@
                     {
                         "name": "request_id",
                         "type": "TYPE_STRING"
+                    },
+                    {
+                        "name": "service_account",
+                        "type": "TYPE_STRING"
                     }
                 ],
                 "resultType": ".google.longrunning.Operation",
diff --git a/packages/google-cloud-parallelstore/src/v1beta/parallelstore_client.ts b/packages/google-cloud-parallelstore/src/v1beta/parallelstore_client.ts
index 0f8b0574c5e..ebe08da871b 100644
--- a/packages/google-cloud-parallelstore/src/v1beta/parallelstore_client.ts
+++ b/packages/google-cloud-parallelstore/src/v1beta/parallelstore_client.ts
@@ -238,6 +238,9 @@ export class ParallelstoreClient {
       projectPathTemplate: new this._gaxModule.PathTemplate(
         'projects/{project}'
       ),
+      serviceAccountPathTemplate: new this._gaxModule.PathTemplate(
+        'projects/{project}/serviceAccounts/{service_account}'
+      ),
     };
 
     // Some of the methods on this service return "paged" results,
@@ -1110,6 +1113,12 @@ export class ParallelstoreClient {
    *
    *   The request ID must be a valid UUID with the exception that zero UUID is
    *   not supported (00000000-0000-0000-0000-000000000000).
+   * @param {string} [request.serviceAccount]
+   *   Optional. User-specified Service Account (SA) credentials to be used when
+   *   performing the transfer.
+   *   Format: `projects/{project_id}/serviceAccounts/{service_account}`
+   *   If unspecified, the Parallelstore service agent is used:
+   *   service-<PROJECT_NUMBER>@gcp-sa-parallelstore.iam.gserviceaccount.com)
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1264,6 +1273,12 @@ export class ParallelstoreClient {
    *
    *   The request ID must be a valid UUID with the exception that zero UUID is
    *   not supported (00000000-0000-0000-0000-000000000000).
+   * @param {string} [request.serviceAccount]
+   *   Optional. User-specified Service Account (SA) credentials to be used when
+   *   performing the transfer.
+   *   Format: `projects/{project_id}/serviceAccounts/{service_account}`
+   *   If unspecified, the Parallelstore service agent is used:
+   *   service-<PROJECT_NUMBER>@gcp-sa-parallelstore.iam.gserviceaccount.com)
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -2059,6 +2074,46 @@ export class ParallelstoreClient {
     return this.pathTemplates.projectPathTemplate.match(projectName).project;
   }
 
+  /**
+   * Return a fully-qualified serviceAccount resource name string.
+   *
+   * @param {string} project
+   * @param {string} service_account
+   * @returns {string} Resource name string.
+   */
+  serviceAccountPath(project: string, serviceAccount: string) {
+    return this.pathTemplates.serviceAccountPathTemplate.render({
+      project: project,
+      service_account: serviceAccount,
+    });
+  }
+
+  /**
+   * Parse the project from ServiceAccount resource.
+   *
+   * @param {string} serviceAccountName
+   *   A fully-qualified path representing ServiceAccount resource.
+   * @returns {string} A string representing the project.
+   */
+  matchProjectFromServiceAccountName(serviceAccountName: string) {
+    return this.pathTemplates.serviceAccountPathTemplate.match(
+      serviceAccountName
+    ).project;
+  }
+
+  /**
+   * Parse the service_account from ServiceAccount resource.
+   *
+   * @param {string} serviceAccountName
+   *   A fully-qualified path representing ServiceAccount resource.
+   * @returns {string} A string representing the service_account.
+   */
+  matchServiceAccountFromServiceAccountName(serviceAccountName: string) {
+    return this.pathTemplates.serviceAccountPathTemplate.match(
+      serviceAccountName
+    ).service_account;
+  }
+
   /**
    * Terminate the gRPC channel and close the client.
    *
diff --git a/packages/google-cloud-parallelstore/test/gapic_parallelstore_v1beta.ts b/packages/google-cloud-parallelstore/test/gapic_parallelstore_v1beta.ts
index ab72e4691c2..86d784d973d 100644
--- a/packages/google-cloud-parallelstore/test/gapic_parallelstore_v1beta.ts
+++ b/packages/google-cloud-parallelstore/test/gapic_parallelstore_v1beta.ts
@@ -2537,5 +2537,58 @@ describe('v1beta.ParallelstoreClient', () => {
         );
       });
     });
+
+    describe('serviceAccount', () => {
+      const fakePath = '/rendered/path/serviceAccount';
+      const expectedParameters = {
+        project: 'projectValue',
+        service_account: 'serviceAccountValue',
+      };
+      const client = new parallelstoreModule.v1beta.ParallelstoreClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      client.pathTemplates.serviceAccountPathTemplate.render = sinon
+        .stub()
+        .returns(fakePath);
+      client.pathTemplates.serviceAccountPathTemplate.match = sinon
+        .stub()
+        .returns(expectedParameters);
+
+      it('serviceAccountPath', () => {
+        const result = client.serviceAccountPath(
+          'projectValue',
+          'serviceAccountValue'
+        );
+        assert.strictEqual(result, fakePath);
+        assert(
+          (client.pathTemplates.serviceAccountPathTemplate.render as SinonStub)
+            .getCall(-1)
+            .calledWith(expectedParameters)
+        );
+      });
+
+      it('matchProjectFromServiceAccountName', () => {
+        const result = client.matchProjectFromServiceAccountName(fakePath);
+        assert.strictEqual(result, 'projectValue');
+        assert(
+          (client.pathTemplates.serviceAccountPathTemplate.match as SinonStub)
+            .getCall(-1)
+            .calledWith(fakePath)
+        );
+      });
+
+      it('matchServiceAccountFromServiceAccountName', () => {
+        const result =
+          client.matchServiceAccountFromServiceAccountName(fakePath);
+        assert.strictEqual(result, 'serviceAccountValue');
+        assert(
+          (client.pathTemplates.serviceAccountPathTemplate.match as SinonStub)
+            .getCall(-1)
+            .calledWith(fakePath)
+        );
+      });
+    });
   });
 });