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Unable to delete External Configuration Tenant applyarc.onmicrosoft.com due to UserCountExceeded error

A.G 0 Reputation points
2025-10-30T20:49:19.1833333+00:00

Hi there,

I'm trying to delete an External Configuration Tenant (Microsoft Entra External ID) called applyarc.onmicrosoft.com within my resource group rg - applyarc - prod. When I select the tenant and attempt to delete it through the Azure portal, the delete command fails and I receive the error message:


The tenant can not be deleted. Reason = 'UserCountExceeded' (Code: AADB2C995060)

From what I can tell there aren't any users associated with this CIAM tenant, but Azure still won't let me remove it. Is there a way to reduce the user count or otherwise delete this External Configuration Tenant?

Thanks in advance.

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
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  1. Lubomir Juriga 6 Reputation points
    2025-12-03T11:49:36.2166667+00:00

    I had the same problem when trying to delete "External Configuration Tenant" from the resource group in Azure portal. You have to first select "Microsoft Entra ID" and then select "Manage tenants" option in the upper tab. This will show you all tenats under your MS account with option to delete. Pick up your tenant you want to delete, select delete and new window "Delete tenant 'YourTenant'?" will open, where all the validation required for deletion are shown (with direct link how to fix the problem). When validation is OK, Delete button in the bottom left corner is available to delete your tenant.

    Hovewer, in my case, aftere successful delete, tenant is still visible in Azure portal resource group, and therefore I am unable to delete this resource group.

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