SOLVED

Set-SyncMailbox cmdlet failed

%3CLINGO-SUB%20id%3D%22lingo-sub-1311774%22%20slang%3D%22en-US%22%3ESet-SyncMailbox%20cmdlet%20failed%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1311774%22%20slang%3D%22en-US%22%3E%3CP%3EIn%20Office%20365%20I%20have%20this%20error%20message%20in%20the%20GUI.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EExchange%3A%20The%20execution%20of%20cmdlet%20Set-SyncMailbox%20failed.%3C%2FP%3E%3CP%3EExchange%3A%20An%20unknown%20error%20has%20occurred.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EI%20have%20looked%20for%20this%20cmdlet%20and%20haven't%20been%20able%20to%20find%20it%20yet.%20Does%20anyone%20have%20a%20reference%20to%20this%3F%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-1311774%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EExchange%20Online%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1313401%22%20slang%3D%22en-US%22%3ERe%3A%20Set-SyncMailbox%20cmdlet%20failed%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1313401%22%20slang%3D%22en-US%22%3E%3CP%3EThat's%20a%20cmdlet%20that%20was%20used%20back%20in%20the%20Live%40EDU%20days...%20I%20don't%20think%20any%20O365%20customer%20has%20access%20to%20it%20anymore.%20Best%20open%20a%20support%20case.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2048699%22%20slang%3D%22en-US%22%3ERe%3A%20Set-SyncMailbox%20cmdlet%20failed%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2048699%22%20slang%3D%22en-US%22%3E%3CP%3EI%20have%20the%20same%20issue%20here%3A%3C%2FP%3E%3CP%3E%3CSPAN%3EExchange%3A%20The%20execution%20of%20cmdlet%20Set-SyncMailbox%20failed.%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3CSPAN%3Efor%20a%20user%20where%20the%20license%20was%20remove%20time%20ago%2C%20then%20re-added%20and%20the%20exchange%20mailbox%20doesn't%20get%20created.%26nbsp%3B%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3CSPAN%3ESo%20this%20is%20still%20around.%3C%2FSPAN%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E
Occasional Contributor

In Office 365 I have this error message in the GUI.

 

Exchange: The execution of cmdlet Set-SyncMailbox failed.

Exchange: An unknown error has occurred.

 

I have looked for this cmdlet and haven't been able to find it yet. Does anyone have a reference to this?

 

 

2 Replies
Best Response confirmed by stephen_dxc122 (Occasional Contributor)
Solution

That's a cmdlet that was used back in the Live@EDU days... I don't think any O365 customer has access to it anymore. Best open a support case.

I have the same issue here:

Exchange: The execution of cmdlet Set-SyncMailbox failed.

for a user where the license was remove time ago, then re-added and the exchange mailbox doesn't get created. 

So this is still around.