B2C Failed to fetch Object ID using AAD-Common read

Hi Support Teams,

Description: We are reporting a critical regression in our B2C authentication flow that began from Jan-09-2026 at 8:00 AM UTC.

The Exception/Issue: Previously, our technical profile successfully retrieved the objectId and passed it to a Validation Profile to query the Microsoft Graph API. As of the timestamp above, this flow is consistently failing with exceptions, blocking all user logins.

Technical Workflow:

1. User login using "SelfAsserted-LocalAccountSignin-Email" technical profile which using some validation technical profile
   1. AAD-Common - Used to retrieve the user's objectId. from signinName (refer to image bellow)
   2. Get-Addition-User-Information-Using-Graph-TechnicalProfile - Uses the retrieved objectId to call Microsoft Graph API.
   3. Observation: The objectId appears to be missing or invalid during the hand-off, causing the Graph API call to fail.

Questions for Support:

• Were there any underlying changes to the B2C identity framework or claims exchange handling deployed at Jan-09-2026 8:00 AM?
• Is there a known service degradation affecting the Graph API connector or Technical Profile execution in our region?
  Exception Message:Failed to establish connection to restful service end point. Restful service URL: https://graph.microsoft.com/v1.0/users/%7BobjectId%7D, Exception Type:ConnectionException, CorrelationID:2e244710-0660-4d8f-9d00-37cd03a5bd0c

    
         
         
       ![User's image](/api/attachments/19dc24f7-7861-4558-9681-80e4081e28d4?platform=QnA)