Hi george,
Thank you for reaching out to the Microsoft Q&A platform.
Based on your question creation and provided screenshot we understand that while deploying a VM with Azure Virtual Desktop you are running into the "Your deployment failed.
These are the three reasons in screenshot cause of the issue.
PFA,
Please find the below document for your reference:
https://learn.microsoft.com/en-us/azure/virtual-desktop/troubleshoot-set-up-issues#error-your-deployment-failedhostnamejoindomain
Credentials provided for joining VMs to the domain are incorrect. There was a typo made when the credentials were entered in the Azure Resource Manager template interface fixes: Error: Incorrect credentials.
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Thank you.