location denied

The deployment must use a region that is both permitted by your subscription’s Allowed resource deployment regions policy and supported by the selected Azure OpenAI model.

1. Find the regions permitted for this subscription

1. In the Azure portal, open Policy.
2. Select Authoring → Assignments.
3. Open Allowed resource deployment regions or Allowed locations.
4. Under Parameters, record the Allowed locations values.
5. Ensure the assignment scope includes the subscription or resource group where practical-gen-ai is being created.

This exact RequestDisallowedByAzure message is associated with subscription-level regional restrictions; choosing arbitrary commonly supported regions will not bypass it.^1^

If the denying assignment is unclear, open:

Resource group → Deployments → failed deployment → Failed. Click here for details

The error details identify the policy assignment that denied the resource.^2^

2. Select a region supported by both the policy and the model

Check the selected model and deployment type in the Azure OpenAI regional-availability table, then choose a region appearing in both lists:

• Subscription policy’s Allowed locations
• Azure OpenAI model/version’s supported regions

Model availability varies by region and deployment category, so a policy-approved region might still not offer the model you need.^3^

Create a new Foundry/OpenAI resource in that intersecting region. An existing resource’s location cannot be changed as part of retrying the failed deployment.

3. If no permitted region supports the required model

• Organization-managed subscription: ask the Azure Policy administrator to approve another location or grant a scoped exemption. Changing assignments requires appropriate policy-management permissions; do not remove an organizational policy without approval.
• Microsoft-managed subscription restriction: open Azure portal → Help + support → Create a support request, enter region access, select Service and subscription limits (quotas), and provide:
  • Subscription
  • Required region
  • Azure OpenAI/Foundry resource type
  • Required model and deployment type
  • Full RequestDisallowedByAzure error
  • Business or data-sovereignty requirement

Microsoft recommends a remediation request only when there is a clear need for the restricted region; otherwise, deploy in another permitted region.^4^

References

1. How to change region (RequestDisallowedByAzure)? - Microsoft Q&A
2. Tutorial: Create and manage policies to enforce compliance
3. Azure OpenAI in Azure AI Foundry Models
4. Resolve location ineligible errors