Hello @Ralph Schiavone thanks for bringing this to our attention. The message "Web Management Service could not authorize" means there is an issue with authentication during deployment.
Since you have already reset the deployment user and password here are some additional troubleshooting steps you can follow to resolve it:
- Make sure that Basic Authentication is enabled for the App Service. You can do this by navigating to the App Service settings in the Azure portal and ensuring that SCM Basic Authentication is turned on
- Make sure the deployment user has the necessary Contributor or Web Deploy contributor role assigned to the specific App Service resource group, not just the subscription.
- Sometimes, resetting the FTPS credentials can help. Go to the Deployment Center in your App Service, generate new FTPS credentials, and use these in your publishing profile
- Lastly, make sure that your firewall and network settings allow connections to the Web Management Service. The service typically listens on port 8172, so make sure this port is open.
Hope that helps.
-Grace