Skip Navigation
Expand
Re-authenticate Office365 mailboxes after updating client secret
Answer ID 12889   |   Last Review Date 08/30/2024

Why are emails not processed in my Office365 mailbox a few days after adding a new Client Secret?

Environment:
 
Oracle B2C Service, All Versions
Office 365 mailboxes
 
Issue:
 
Emails are not being processed in my Office365 mailbox a few days after updating the Client Secret.  I added a new Client Secret in my Azure Active Directory > App Registration since the current one was about to expire.  I also updated configuration key CUSTOM_CFG_MAILBOX_OA_CLIENT_SECRET.  Everything seemed to work fine for a few days, but now emails are not being processed.
 
Resolution:
 
After changing configuration key CUSTOM_CFG_MAILBOX_OA_CLIENT_SECRET, all Office365 mailboxes should be authenticated again to ensure the new client secret is being used.  The Authenticate button is in the Browser UI client (BUI) at Configuration > Site Configuration > Mailboxes > select the mailbox > Incoming Email tab. 
For more information about the Client Secret see Answer 11864: Setting up App Registration for Office365 Mailboxes.