Unable to run the sync cycles post tenant attach, Getting Invalid certificate
Question
We are getting the below failure error post performing tenant attach
Suresh Gopi Kolluri 
Leave an answer
Sorry, you do not have permission to answer to this question .
Answers ( 4 )
Hi Anoop,
we were been able to find the root cause for it
post excluding the url we still see that proxy error 407 is been coming
when we checked the site server proxy there is a Old proxy which is been decommissioned already been used in that
post removal everything is going smoothly
Thanks Anoop for the response
Issue here is we are getting a invalid certificate when we are initiating the sync Cycles from Intune
We were able to find the invalid certificate error is being occurred as there is a issue with user discovery from which is been configured in Azure services
Currently from Azure Ad user discovery log we can see it’s trying to initiate the request but was getting failed saying ” An error occurred while sending the requested .The remote server returned an error (407) proxy authentication required
OK invalid cert issue is because Azure User discovery issue? and Azure user discovery is because of proxy issues in your environment
Proxy error 407 is because the communication requires user authentication? Have you tried to white list the system itself rather than using user proxy auth?
Some logs that are helpful in tenant attach troubleshooting is
CMGatewayNotificationWorker.log
AdminService.log
Thanks Anoop…Looks Graph.microsoft.com is not been allowed in the Sccm connection point site server..We are working on it
Can you please share the details after checking the logs mentioned in the post below?
SCCM Tenant Attach Background Process Walkthrough via Logs
https://www.anoopcnair.com/sccm-tenant-attach-background-process-walkthrough-via-logs/
I can’t read the error details from the screenshot
Please can you provide more details?