This is one of those that's got me really wondering what I'm not grok'ing.
- You can link to a PowerApp directly and pass along inline parameters: https://...&test=true
- You can add a PowerApp Tab to a Channel in Teams (or similarly a link to a website the same as the item above)
- You can create a link to the PowerApp Tab and post it back to said Team (and click/open the PowerApp within Teams)
- (It appears that) You cannot send inline parameters via a MS Teams Tab link (that aren't expected)
I've looked through the Deep Link documentation and peeled apart the URL that Teams generates for an App. However, there just doesn't appear to be a way I can manipulate that URL to include dynamic parameters.
Adding it into the value of the "canvasUrl" that is passed to Teams as an extra parameter to the defaults just gets it ignored. Worth noting, the "canvasURL" is encoded but once you decode it, it essentially reads as: "https:\\apps.powerapps.com\play\providers\Microsoft.PowerApps\apps\your_app_id?screenColor=rgba(0, 176, 240, 1)&source=teamstab&locale={locale}". Dropping an encoded variable into the front/middle/end of this doesn't work and the variable just gets ignored (but everything else works fine).
There are several entries into the Teams UserVoice requesting this, so it seems like it can't be done. However, I wanted to ask here before I just punt and open things outside of Teams (via a direct link to the PowerApp vs. the PowerApp hosted within a Teams-Channel-Tab).
