I cannot create new premium event hubs namespaces due to 'NamespaceCreationIsRestricted' errors

Alex Stevenson 0 Reputation points Microsoft Employee
2026-07-22T21:02:39.5166667+00:00

I cannot create new premium event hubs namespaces due to 'NamespaceCreationIsRestricted' errors. I've tested several regions and they all fail despite Premium being listed as supported for those regions. Is there some place I can get an official list of where I can create premium event hubs? I don't want to build a system that depends on them and then discover they're available in only a few regions.

Azure Event Hubs

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  1. Alex Burlachenko 25,120 Reputation points MVP Volunteer Moderator
    2026-07-23T09:15:48.01+00:00

    hi Alex Stevenson & thx for sharing urs issue here at Q&A portal,

    NamespaceCreationIsRestricted isn't a regional availability error. It indicates that namespace creation is being blocked by a service-side restriction or subscription policy before provisioning begins.

    If Premium Event Hubs is documented as available in the regions you're testing, but every region returns the same NamespaceCreationIsRestricted error, I'd suspect a subscription-level restriction or backend allowlist rather than a lack of regional support. Changing regions won't help if the restriction is tied to the subscription.

    There isn't a separate public list of 'regions where your subscription can create Premium namespaces.' The official Event Hubs regional availability documentation is the authoritative list for service availability, but it doesn't reflect subscription-specific provisioning restrictions. At this point, I'd open an Azure Event Hubs support case and provide the subscription ID, the regions tested, the exact UTC timestamps, correlation IDs from the failed deployments, and the full NamespaceCreationIsRestricted error. The Event Hubs team can determine whether the subscription is subject to an internal restriction or whether this is a backend provisioning issue.

    rgds,

    Alex

    &

    If my answer was helpful pls mark it and additional thx if u follow me at Q&A portal

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