Azure Ad synchronization : subscription and service plans

Hello,

I m using version 8.1.1

I have a synchronisation project to Azure and O365 tenant. every thing is working fine.

But i have an issue : I have subscriptions which contains service plans. When i assign  a subscription to a user or business role, the service plan are not assigned to the user.

I can see the user has the Subscription but the service plans does not appear in the AAD user view.

The query : select * from AADUserHasServicePlan where UID_AADUser='xxxxxxx' gives nothing too..

Is that normal or have i missed some thing ?

Thank you for your help.