WorkplaceJoin WIndows10 issue

Hi,

we have a problem with a WorkplaceJoin for Windows10.

We worked with the following article "https://azure.microsoft.com/nl-nl/documentation/articles/active-directory-azureadjoin-devices-group-policy/" to get the join running.

Does anyone know, if there is a way to get information if "Initialize-ADSyncDomainJoinedComputerSync" already ran? Or does I see anywhere if it is initialized? Is there any hint, any regkey, else?

thanks, Alex