Getting the following error from the Add-RdsAccount command - Add-RdsAccount -DeploymentUrl "https://rdbroker.wvd.microsoft.com"
One or more errors occurred. (An invalid request URI was provided. The request URI must either be an absolute URI or BaseAddress must be set.)
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@pgraham03
Thanks for your feedback! We will investigate and update as appropriate.
Make sure you have all of the modules installed from the previous page and have copied the command and URL exactly. I tested in my own environment and got it working.

If you are still having issues, can you please post this to MSDN?https://social.msdn.microsoft.com/Forums/azure/en-US/home?forum=WAVirtualMachinesforWindows
You can also email me at [email protected] and send your subscription ID.
I had the same issue because I used my global user in domain Outlook.com - so, In this case, you have to create a new user in your tenant onmicrosoft.com or domain assigned to your tenant with permission "Global Administrator". After then all those commands run on created user.
I still get "Add-RdsAccount: One or more errors occurred. (An invalid request URI was provided. The request URI must either be an absolute URI or BaseAddress must be set.)" When using Powershell 7.0.3, if I use Powershell 5.1 all is well.