diff --git a/packages/service-clients/odsp-client/api-report/odsp-client.api.md b/packages/service-clients/odsp-client/api-report/odsp-client.api.md
index a158843c813e..3c80184b4973 100644
--- a/packages/service-clients/odsp-client/api-report/odsp-client.api.md
+++ b/packages/service-clients/odsp-client/api-report/odsp-client.api.md
@@ -57,10 +57,9 @@ export interface OdspContainerServices {
 
 // @alpha
 export interface OdspMember extends IMember {
-    // (undocumented)
     email: string;
-    // (undocumented)
     name: string;
+    userId: string;
 }
 
 // (No @packageDocumentation comment for this package)
diff --git a/packages/service-clients/odsp-client/src/interfaces.ts b/packages/service-clients/odsp-client/src/interfaces.ts
index c5154d0e1318..5fdb67c480f3 100644
--- a/packages/service-clients/odsp-client/src/interfaces.ts
+++ b/packages/service-clients/odsp-client/src/interfaces.ts
@@ -4,7 +4,6 @@
  */
 import { type ITelemetryBaseLogger } from "@fluidframework/core-interfaces";
 import type { IMember, IServiceAudience } from "@fluidframework/fluid-static";
-import { type IUser } from "@fluidframework/protocol-definitions";
 import { IConfigProviderBase } from "@fluidframework/core-interfaces";
 import { IOdspTokenProvider } from "./token";
 
@@ -68,31 +67,25 @@ export interface OdspContainerServices {
 /**
  * Since ODSP provides user names and email for all of its members, we extend the
  * {@link @fluidframework/protocol-definitions#IMember} interface to include this service-specific value.
+ * It will be returned for all audience members connected.
+ *
  * @alpha
  */
-export interface OdspUser extends IUser {
+export interface OdspMember extends IMember {
+	/**
+	 * The object ID (oid) for the user, unique among each individual user connecting to the session.
+	 */
+	userId: string;
 	/**
 	 * The user's name
 	 */
 	name: string;
-
 	/**
 	 * The user's email
 	 */
 	email: string;
 }
 
-/**
- * Since ODSP provides user names and email for all of its members, we extend the
- * {@link @fluidframework/protocol-definitions#IMember} interface to include this service-specific value.
- * It will be returned for all audience members connected.
- * @alpha
- */
-export interface OdspMember extends IMember {
-	name: string;
-	email: string;
-}
-
 /**
  * Audience object for ODSP containers
  * @alpha
diff --git a/packages/service-clients/odsp-client/src/odspAudience.ts b/packages/service-clients/odsp-client/src/odspAudience.ts
index 6e817abec006..f930a49cef3c 100644
--- a/packages/service-clients/odsp-client/src/odspAudience.ts
+++ b/packages/service-clients/odsp-client/src/odspAudience.ts
@@ -5,17 +5,37 @@
 import { assert } from "@fluidframework/core-utils";
 import { type IClient } from "@fluidframework/protocol-definitions";
 
-import { type OdspMember, OdspUser } from "./interfaces";
+import { type OdspMember } from "./interfaces";
+
+/**
+ * Since ODSP provides user names, email and oids for all of its members, we extend the
+ * {@link @fluidframework/protocol-definitions#IMember} interface to include this service-specific value.
+ * @internal
+ */
+interface OdspUser {
+	/**
+	 * The user's email address
+	 */
+	email: string;
+	/**
+	 * The user's name
+	 */
+	name: string;
+	/**
+	 * The object ID (oid). It is a unique identifier assigned to each user, group, or other entity within AAD or another Microsoft 365 service. It is a GUID that uniquely identifies the object. When making Microsoft Graph API calls, you might need to reference or manipulate objects within the directory, and the `oid` is used to identify these objects.
+	 */
+	oid: string;
+}
 
 export function createOdspAudienceMember(audienceMember: IClient): OdspMember {
-	const user = audienceMember.user as OdspUser;
+	const user = audienceMember.user as unknown as OdspUser;
 	assert(
-		user.name !== undefined || user.email !== undefined,
+		user.name !== undefined || user.email !== undefined || user.oid !== undefined,
 		0x836 /* Provided user was not an "OdspUser". */,
 	);
 
 	return {
-		userId: user.id,
+		userId: user.oid,
 		name: user.name,
 		email: user.email,
 		connections: [],