You have a Microsoft 365 E3 subscription that uses Teams. The subscription contains an administrator named Admin1 that is assigned the Teams Administrator role. Admin1 reports that he can assign…

The `Grant-CsUserPolicyPackage` PowerShell cmdlet assigns an existing policy package to a user, but it does not grant the permission to create new custom policy packages.

The ability to create and assign custom policy packages in Microsoft Teams is a feature that specifically requires a Teams Premium license. Without this license, even an administrator with the Teams Administrator role can only assign default policy packages.

`Grant-CsAppSetupPolicyPackageAssignment` is not a standard cmdlet for managing policy packages; cmdlets like `Grant-CsTeamsAppSetupPolicy` are for individual policy assignment, not for enabling custom policy package creation.

While a Microsoft 365 E5 license includes many advanced features, the specific capability to create custom policy packages in Teams is tied to the Teams Premium license, not the broader E5 license itself.