Microsoft 365 Sync - 3 Specific Users won't sync

[myUsername]

So, I've checked everything. We have say ~ 50 users that are syncing with out issue. I can re-create these users at ease and it will sync, no problem.

There are 3 users that at the beginning never synced, and now I am trying to figure out why. The e-mail address matches, as does the upn and default SMTP address, etc. There is a first and last name in 3CX and they also match which I know is not a requirement to match (the name). I can choose the user(s) that won't sync from the Microsoft 365 'sync these users' or 'don't sync these users', etc. screen. I confirm the e-mail address is correct and visible.

I have fully deleted the users that are having an issue, after disabling them from Microsoft sync, rebooted, added the users back and put them back in Microsoft 365 sync.

I also try to have these 3 'problem users' import from Microsoft 365 because I do have that enabled, and if I delete the problem users and reboot, disable sync, enable sync, etc... these 3 users don't get created.

I am at a loss where to look to next, can anyone please help me?

 

[CLS VIP]

Check under their user accounts in Aziure AD and ensure that the are set to Member under the group,

 

[Gandeep]

I am also having this same issue and can't figure it out.
3 specific users that won't sync. All other users sync fine.

 

[Charles_3CX]

I am also having this same issue and can't figure it out.
3 specific users that won't sync. All other users sync fine.

Have you checked under their user accounts settings in Azure AD and ensured that they are set to 'Member' under the group settings and not set to 'Guest'?

 

[myUsername]

Charles,

Sorry for the delay in reporting back, but that worked in my case. Strange. For some reason for me, those 3 users actually had a blank MemberType, so I change the 3 of them to Member and resynced, all good.

 

[Gandeep]

Same for me, that did it.
thanks!