Request to Update Allowed Regions Policy for Azure IoT Hub Deployment

Hi Ahmed,

I understand the issue you are facing. It happens when the allowed regions policy and the service availability do not match.

Right now, your subscription has an allowed regions policy that only permits a few regions like Sweden Central, Italy North, France Central, Poland Central, and Spain Central. But Azure IoT Hub is not available in these regions, so when you try to create the resource, no region shows up as valid. [learn.microsoft.com]

This is why the deployment is blocked even though everything else is correct.

This policy works as a restriction. It checks the region you select, and if that region is not in the allowed list, the deployment is automatically denied. Azure uses this to enforce governance and control where resources can be created. [learn.microsoft.com]

To troubleshoot this, you can start by checking the policy applied to your subscription. In the Azure portal, go to Policy, then Assignments, and look for a policy named Allowed locations or Allowed resource deployment regions. Open it and check the Parameters section. This will show the list of regions that are currently allowed.

Next, compare that list with the regions that support Azure IoT Hub. If none of the allowed regions support IoT Hub, then the portal will not show any available regions during creation.

Also, keep in mind that policies can be applied at different levels like subscription or management group. So even if it looks correct in one place, a higher-level policy may still restrict the regions.

To move forward, you need at least one region in the allowed list that supports Azure IoT Hub, such as West Europe, North Europe, or East US. Once a supported region is included in the policy, you will be able to proceed with deployment.

You can refer to these official documents for more details:

Azure Policy troubleshooting guide https://learn.microsoft.com/en-us/azure/governance/policy/troubleshoot/general

In short: the issue is not with IoT Hub. It is due to the policy restricting regions, and those regions do not support the service. Aligning the policy with a supported region should resolve it.

Hope this helps. Let me know if you want help checking your policy configuration.

If this answers your query, please do click Accept Answer and Yes for was this answer helpful.

Thankyou!

The allowed regions policy is blocking deployment because it only permits regions where IoT Hub isn’t available. The policy itself must be changed at the subscription/tenant level; this can’t be bypassed from the IoT Hub creation blade.

To proceed, use one of these approaches:

1. Select an alternative region (if possible)
   If there is any supported IoT Hub region already allowed by your organization’s policy, deploy the IoT Hub there. For TLS 1.2 enforcement and strong cipher suites, ensure that the chosen region is a supported public cloud region and then set Minimum TLS version to 1.2 during or after creation, as described in the IoT Hub TLS documentation.
2. Request a policy/region exception via support
   Because the current policy excludes all IoT Hub–capable regions needed (for example, West Europe, North Europe, East US), a region access/policy change request must be raised with Microsoft support (typically by a subscription owner or admin):
   • Create a support request in the Azure portal under Service and subscription limits (quotas).
   • For quota type, use the appropriate “Unable to access <region> region” option (for example, West Europe) and clearly state that IoT Hub deployment is blocked because the allowed regions policy only includes regions where IoT Hub is not available.
   • Provide business justification (for example, IoT solution requirements, data residency, or dependency on specific regions like West Europe/North Europe/East US).
   After submission, the request is processed by Azure Support and Engineering. If approved, the requested region(s) become available for resource deployment in the subscription, and IoT Hub can then be created there.
3. If the restriction is from internal governance (Azure Policy)
   If an internal Azure Policy (set by your organization) is enforcing the allowed regions list, a policy owner (for example, central IT) must update that policy definition/assignment to include at least one IoT Hub–supported region (such as West Europe, North Europe, or East US). Once the policy is updated and re-evaluated, IoT Hub creation in those regions will be allowed.

In summary, to unblock IoT Hub deployment, a region access or policy change is required—either by selecting a different permitted region that supports IoT Hub or by having support/admins add an IoT Hub–capable region (for example, West Europe, North Europe, East US) to the allowed regions.

References:

• Resolve location ineligible errors
• Azure region access request process
• Transport Layer Security (TLS) support in IoT Hub