Hello Dmytro Naboka,
Greetings! Thanks for raising this question in the Q&A forum.
The challenge you are facing is a common one in enterprise environments. An Azure Databricks account is tied to a specific Microsoft Entra ID (Azure AD) tenant, and closing it requires either the account owner or an account admin to initiate the closure from the Databricks Account Console. Since the original owner is unknown, you need to first identify who that is and then either elevate access to take over admin control or engage Databricks support to handle the closure on your behalf.
Here are the steps you can follow to resolve this:
Find the underlying Azure tenant using the Databricks Account Console. Log in to the Databricks Account Console at https://accounts.azuredatabricks.net. If you can access the console, navigate to "Settings" and look at the Account ID. Cross-reference this Account ID with your subscriptions in the Azure Portal to trace which tenant it belongs to.
Search across your Azure subscriptions for the Databricks resource. In the Azure Portal (https://portal.azure.com), use the global search bar or go to "All Resources" and filter by resource type "Azure Databricks Service." Search across all your subscriptions and tenants. The resource group and subscription that hosts the Databricks workspace will tell you the owning tenant. You can also use Azure Resource Graph Explorer with this query to search across subscriptions:
resources
| where type == "microsoft.databricks/workspaces"
| project name, subscriptionId, resourceGroup, tenantId
Elevate access using a Microsoft Entra Global Administrator account. If you have a Global Administrator in the tenant where the Databricks account lives, that admin can temporarily elevate their access to manage all Azure subscriptions. Once elevated, they can gain access to the Databricks Account Console as an account admin and initiate the closure. For details on how to do this, refer to: https://learn.microsoft.com/en-us/azure/role-based-access-control/elevate-access-global-admin
Use the Azure Portal to check IAM role assignments on the Databricks resource. Once you locate the Databricks workspace resource in the Azure Portal, go to "Access control (IAM)" and click "Role assignments." This will show you who has the Owner or Contributor role on that resource, which can help identify the original account creator.
Contact Databricks Support to request account closure. If you cannot identify the owner or gain admin access, the recommended path is to contact Databricks support directly. As noted in the Databricks knowledge base, you can contact your Databricks account team to change the account owner and then proceed with deletion. Raise a support ticket through https://help.databricks.com and provide your Databricks Account ID, the fact that it is an abandoned account, and your enterprise relationship details. They can assist with transferring ownership or closing the account on your behalf.
Delete the underlying Azure Databricks workspace resources via Azure Portal. If the goal is simply to stop any potential cost or usage, and since you have already cleared the Databricks side (no workspaces, metastores, tokens, or OAuth clients), you can also delete the remaining Azure resource group or the Databricks workspace resource directly from the Azure Portal, provided you have Owner or Contributor access on the Azure subscription. This stops any Azure-level billing even while the Databricks account shell is being closed.
For further reference on managing your Azure Databricks account settings, please review: https://learn.microsoft.com/en-us/azure/databricks/admin/account-settings/
For the scenario where there are no active admins on an abandoned account, this Databricks knowledge base article is also very helpful: https://kb.databricks.com/administration/unable-to-access-azure-databricks-account-as-an-admin
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Best Regards,
Jerald Felix.