Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Just about the same, but after 3 or 4 tries at fully uninstalling/ reinstalling Office the copilot buttons showed up. Still have code 29. A 3rd level support person is supposed to call in the next 48 hours. You probably should get in line with support. Useless so far but at some point, I hope someone will be able to fix it.
If you want to play around with copilot, try the online version of word. That worked for me at least. Just my desktop apps are hosed right now.