Some admins may be unable to create a Dynamic-Distribution-Group (DDG) using the Exchange admin center

Title: Some admins may be unable to create a Dynamic-Distribution-Group (DDG) using the Exchange admin center
User impact: Admins may be unable to create a DDG using the Exchange admin center.
More info: As a workaround, admins can use PowerShell to create DDGs without issues.
Current status: We’ve completed reverting the offending update and are reaching out to some admins who reported the issue to validate the impact is remediated.
Scope of impact: Some admins attempting to create a DDG using the Exchange admin center may be impacted.
Start time: Thursday, January 4, 2024, 9:46 PM UTC
Root cause: A recent service update to the Exchange Online API configuration contains a code regression that’s preventing admins from creating DDGs in the Exchange admin center.
Next update by: Friday, January 12, 2024, at 10:00 PM UTC