VM Allocation failed. VM(s) with the following constraints cannot be allocated

Leo 40 Reputation points
2026-07-01T10:01:37.96+00:00

I am unable to create/allocate a virtual machine on Azure Machine Learning. I do have enough quota. I was able to do the same in the past without problems admitting quota was available. Now I it fails with message:

"Provisioning error Allocation failed. VM(s) with the following constraints cannot be allocated, because the condition is too restrictive. Please remove some constraints and try again. Constraints applied are: - VM Size"

Is this an issue with the subscription or is it related to a lack of physical GPUs on the cluster?

Azure Machine Learning
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Answer accepted by question author

Salamat Shah 660 Reputation points MVP
2026-07-01T13:42:06.9666667+00:00

This issue is not related to quota limitations; rather, it is typically caused by a capacity constraint. Azure is unable to allocate the requested virtual machine because the required hardware resources commonly GPU-backed instances for that specific VM size are currently unavailable in the selected region.

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