Hi @Christian Bopp ,
if your user doesn't have the permission to create a Resource Group in an Azure Subscription please check the permission/role membership on subscription level for the user (navigate to Access control (IAM)
at Subscription).
Your user needs to have at least Contributor
role membership in RBAC.
If you are using Azure custom roles the permission Microsoft.Resources/subscriptions/resourceGroups/write
is required to create Resource Groups in Azure Subscriptions.
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten