So, we tested out using WEM to first launch onedrive for a published app, once it is in your profile, then it auto launches each time. However WEM launching it as an external task launches it BEFORE all the adal and shellbridge info was in place, so it would never auto-sign in. If we used my previous method of launching it from a scheduled task set to logon, it worked. Is there anything we can do in WEM to setup that launch after all the MS creds are in place?

My first thought would be to use a PS external task where you check for those prereqs and then launch.

i was thinking the same thing, maybe on a process termination or something similar

If there is a windows event to indicate that all MS creds are in place, it can be used as the windows event trigger for the external task.

Well I was going about this the wrong way. Instead of using logon for the trigger, I just did the Process Start trigger, and had it trigger once the Published App launches. Thanks all for the wall to bounce this off of.