You can assign subscriptions to anyone in your User Management list in Partner Center or in your Microsoft Azure Active Directory (Azure AD) tenant, by doing the following steps:
Sign in to the Partner Center dashboard.
From the Partner Center menu, select Benefits.
Select Visual Studio.
Assign the desired users to your existing Visual Studio subscriptions available.
After you’ve assigned the subscription, the user needs to sign in to Visual Studio to manage it.
Note
Visual Studio subscriptions may be reassigned from one subscriber to another if 90 days have passed since the time of the original assignment.
For more information, read Visual Studio Benefits - MPN.