Stopped-extension-DLL-exception / no-start-ma Error

I faced a strange issue few days back when i was trying to  force a Delta sync it gave me "Stopped-extension-DLL-exception / no-start-ma" errors.

Steps taken for fix -

1. Using Global Administrator credentials, I logged into Azure Portal. I quickly check the Sign in logs & noticed some Failure events & on exploring them, i found possible reasons under Additional details.

Possible reasons could be a Policy blocking the access. Policy could be a coming from Conditional access or from Identity Protection .

2. Navigate to Security feature under EntraAD --> Cross checked if in past, any conditional access policy was created that might block access.

3. I then verified Azure Identity Protection Policy & under Sign-in risk Policy, i did have a Policy which was configured for Testing purpose. 

Policy was about if the Sign in risk is Low & above, then for all users access would be blocked.

I disabled that policy & tried forcing the Sync. This time, it got completed successfully.

Stopped-deletion-threshold-exceeded error while running Azure AD Sync

 Fixing - Stopped-deletion-threshold-exceeded error while doing Sync.

Possible Reasons - I am getting this error particularly because i have Un synced an OU from AzureAD Connect & that OU contains items which was above threshold limit for Object Sync & Unsync. 

In order to fix it, we will login to Azure AD connect server & run below commands -

1. Get-ADSyncExportDeletionThreshold - Check ADSyncExport Deletion threshold currently set.

Currently it's set to 50. This means if there is an OU which contains more then 50 objects, then probably it would throw the error.

2. Editing threshold from 50 to 200 since the OU i am unsyncing right now contains total 153 objects.

Once done, try forcing the sync again & this time you won't see any error.