Hi Proxauf, Bastian,
Thank you for reaching out to us on the Microsoft Q&A forum.
It appears that the limit of vCores for the region has been surpassed.
To verify the current usage of vCPUs from the Azure portal:
Navigate to your subscription.
Access the "Usage + Quotes" section.
Locate the usage details for "Standard FS family" vCPUs.
To initiate a quota, increase request, proceed to the portal and submit a support ticket. Within the ticket, specify the region and request an augmentation of your quota.
Reference documents: https://learn.microsoft.com/en-us/azure/azure-resource-manager/troubleshooting/error-resource-quota?tabs=azure-cli#solution
https://learn.microsoft.com/en-us/azure/quotas/per-vm-quota-requests
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If you still persist the issue, please feel free to reach out to us we will be happy to help you out.
Thank you.