Azure Landing Zone Accelerator deployment error

Tayo Taiwo 20 Reputation points
2025-06-18T14:45:53.5066667+00:00

I am trying to use the Azure Landing Zone Accelerator and after selecting the options available to us, I get this error message at the end of the deployment:

The resource write operation failed to complete successfully, because it reached terminal provisioning state 'Failed'. Click here for details

{"code":"DeploymentFailed","message":"At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.","details":[{"code":"BadRequest","message":"{\r\n "error": {\r\n "code": "MissingPolicyParameter",\r\n "message": "The policy assignment 'Enforce-RegComp-wam57en7' is missing the parameter(s) 'operationName-3b980d31-7904-4bb7-8575-5665739a8052,MembersToExclude-69bf4abd-ca1e-4cf6-8b5a-762d42e61d4f,allowedEncryptionSets-d461a302-a187-421a-89ac-84acdb4edc04,virtualNetworkId-d416745a-506c-48b6-8ab1-83cb814bcaa3,operationName-c5447c04-a4d7-4ba8-a263-c9ee321a6858,operationName-b954148f-4c11-4c38-8221-be76711e194a,MembersToInclude-30f71ea1-ac77-4f26-9fc5-2d926bbd4ba7' as defined in the policy definition '6d220abf-cf6f-4b17-8f7e-0644c4cc84b4 version 1.3.0'."\r\n }\r\n}"}]}

Azure Policy
Azure Policy
An Azure service that is used to implement corporate governance and standards at scale for Azure resources.
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Accepted answer
  1. Pranay Reddy Madireddy 6,180 Reputation points Microsoft External Staff Moderator
    2025-06-18T23:33:23.7366667+00:00

    Hi Tayo Taiwo

    The error message you are encountering indicates that there is a missing policy parameter in your Azure Landing Zone Accelerator deployment. Specifically, the policy assignment 'Enforce-RegComp-wam57en7' is missing several parameters as defined in the policy definition. To resolve this issue, you should ensure that all required parameters are correctly specified in your policy assignment.

    You may want to review the policy definition and confirm that the parameters such as 'operationName', 'MembersToExclude', 'allowedEncryptionSets', and 'virtualNetworkId' are correctly set. If any of these parameters are missing or incorrectly configured, it could lead to the deployment failure you are experiencing.

    https://learn.microsoft.com/en-us/industry/nonprofit/azure-landing-zone#troubleshoot

    https://learn.microsoft.com/en-us/azure/azure-resource-manager/troubleshooting/common-deployment-errors

    Kindly let us know if the above helps or you need further assistance on this issue.


    Please do consider to “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

    1 person found this answer helpful.

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