I just wanted to put a short blog post out there about AdMod.
If you are getting an error using AdMod to make a change and you don’t know what is going on, don’t forget about the VERY USEFUL switch, -exterr. That switch is specifically there to help you find issues. So if you get an error, rerun the command with -exterr if you didn’t specify it initially and look at the extended error displayed. If you have Err from the Exchange downloads you can use that to decode the error to something a little more readable.