Hi stephens Anthony,
Thank you for reaching out to the Microsoft Q&A platform.
Based on your question description we understand that you are facing an issue while creating an Azure Virtual Desktop.
The error message "The resource write operation failed to complete successfully, because it reached terminal provisioning state 'Failed' indicates that the deployment of the Azure Virtual Desktop has failed.
To troubleshoot this issue, go to the Azure portal, navigate to the resource group where the deployment is happening, and check the deployment history here: Deployment operations and error message Look for any specific error messages in the JSON tab of the failed deployment.
Check if there are any Azure Policies that might be preventing the deployment.
Please find the below documents links for your reference:
Troubleshoot the Azure Virtual Desktop quickstart
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