diff --git a/src/core/MIGRATION.md b/src/core/MIGRATION.md
index e04d45f77db5..6a95468f5509 100644
--- a/src/core/MIGRATION.md
+++ b/src/core/MIGRATION.md
@@ -45,7 +45,7 @@
       - [UI Exports](#ui-exports)
   - [How to](#how-to)
     - [Configure plugin](#configure-plugin)
-      - [Handle plugin configuration deprecations](#handle-plugin-config-deprecations)
+      - [Handle plugin configuration deprecations](#handle-plugin-configuration-deprecations)
     - [Use scoped services](#use-scoped-services)
       - [Declare a custom scoped service](#declare-a-custom-scoped-service)
     - [Mock new platform services in tests](#mock-new-platform-services-in-tests)
@@ -55,7 +55,7 @@
     - [Provide Legacy Platform API to the New platform plugin](#provide-legacy-platform-api-to-the-new-platform-plugin)
       - [On the server side](#on-the-server-side)
       - [On the client side](#on-the-client-side)
-    - [Updates an application navlink at runtime](#updates-an-app-navlink-at-runtime)
+    - [Updates an application navlink at runtime](#updates-an-application-navlink-at-runtime)
     - [Logging config migration](#logging-config-migration)
 
 Make no mistake, it is going to take a lot of work to move certain plugins to the new platform. Our target is to migrate the entire repo over to the new platform throughout 7.x and to remove the legacy plugin system no later than 8.0, and this is only possible if teams start on the effort now.
@@ -1199,13 +1199,13 @@ In server code, `core` can be accessed from either `server.newPlatform` or `kbnS
 | `request.getBasePath()`                                                       | [`core.http.basePath.get`](/docs/development/core/server/kibana-plugin-server.httpservicesetup.basepath.md)                                                                                                                                                                                                 |                                                                             |
 | `server.plugins.elasticsearch.getCluster('data')`                             | [`context.core.elasticsearch.dataClient`](/docs/development/core/server/kibana-plugin-server.iscopedclusterclient.md)                                                                                                                                                                                            |                                                                             |
 | `server.plugins.elasticsearch.getCluster('admin')`                            | [`context.core.elasticsearch.adminClient`](/docs/development/core/server/kibana-plugin-server.iscopedclusterclient.md)                                                                                                                                                                                           |                                                                             |
-| `server.plugins.elasticsearch.createCluster(...)`                             | [`core.elasticsearch.createClient`](/docs/development/core/server/kibana-plugin-server.elasticsearchservicesetup.createclient.md)                                                                                                                                                                           |                                                                             |
+| `server.plugins.elasticsearch.createCluster(...)`                             | [`core.elasticsearch.legacy.createClient`](/docs/development/core/server/kibana-plugin-server.elasticsearchservicestart.legacy.md)                                                                                                                                                                           |                                                                             |
 | `server.savedObjects.setScopedSavedObjectsClientFactory`                      | [`core.savedObjects.setClientFactoryProvider`](/docs/development/core/server/kibana-plugin-server.savedobjectsservicesetup.setclientfactoryprovider.md)                                                                                                                                                                     |                                                                             |
 | `server.savedObjects.addScopedSavedObjectsClientWrapperFactory`               | [`core.savedObjects.addClientWrapper`](/docs/development/core/server/kibana-plugin-server.savedobjectsservicesetup.addclientwrapper.md)                                                                                                                                                                     |                                                                             |
 | `server.savedObjects.getSavedObjectsRepository`                               | [`core.savedObjects.createInternalRepository`](/docs/development/core/server/kibana-plugin-server.savedobjectsservicestart.createinternalrepository.md) [`core.savedObjects.createScopedRepository`](/docs/development/core/server/kibana-plugin-server.savedobjectsservicestart.createscopedrepository.md) |                                                                             |
 | `server.savedObjects.getScopedSavedObjectsClient`                             | [`core.savedObjects.getScopedClient`](/docs/development/core/server/kibana-plugin-server.savedobjectsservicestart.getscopedclient.md)                                                                                                                                                                       |                                                                             |
 | `request.getSavedObjectsClient`                                               | [`context.core.savedObjects.client`](/docs/development/core/server/kibana-plugin-server.requesthandlercontext.core.md)                                                                                                                                                                                      |                                                                             |
-| `request.getUiSettingsService`                                                | [`context.uiSettings.client`](/docs/development/core/server/kibana-plugin-server.iuisettingsclient.md)                                                                                                                                                                                                      |                                                                             |
+| `request.getUiSettingsService`                                                | [`context.core.uiSettings.client`](/docs/development/core/server/kibana-plugin-server.iuisettingsclient.md)                                                                                                                                                                                                      |                                                                             |
 | `kibana.Plugin.deprecations`                                                  | [Handle plugin configuration deprecations](#handle-plugin-config-deprecations) and [`PluginConfigDescriptor.deprecations`](docs/development/core/server/kibana-plugin-server.pluginconfigdescriptor.md)                                                                                                     | Deprecations from New Platform are not applied to legacy configuration      |
 | `kibana.Plugin.savedObjectSchemas`                                            | [`core.savedObjects.registerType`](docs/development/core/server/kibana-plugin-server.savedobjectsservicesetup.registertype.md)                                                                                                                                                                              | [Examples](./MIGRATION_EXAMPLES.md#saved-objects-types)                     |
 | `kibana.Plugin.mappings`                                                      | [`core.savedObjects.registerType`](docs/development/core/server/kibana-plugin-server.savedobjectsservicesetup.registertype.md)                                                                                                                                                                              | [Examples](./MIGRATION_EXAMPLES.md#saved-objects-types)                     |