Deeplink Woes

[cycle4passion]

I have constructed Deeplink pointing to individual Gallery items based on ID. It posts in a Teams Message.

In my Powerapp App.OnStart I use

If(Not(IsBlank(Param("ID"))), Set(varHospitalMRN, Param("ID")); Navigate(EditScreen, Transition.None));

Clicking on the link in Teams switches to my Powerapp and takes me to the Record designated in the link as expected. Great. I exit the specified record going back to my main screen.

Now that the app is already running, I go back to Teams and click the same Link, it takes me to my Powerapp but stays at the main screen. So I assume OnStart, truly mean on App start, not on App restart/reselection.

Fine, I go back to the way it was done before App.OnStart existed. I add a recurring timer on the Main/Start Screen, and apply the same code to the OnTimerEnd. The programmer in me cringes as I contemplate the inefficiency of polling.

I repeat my tests, Without Powerapps already running all works correctly, however when it is already running, It remains on the main Screen.  I added label showing Param("ID") on the Main/Start Screen and it does not update until it leave and return to the main screen. 

Is this just he way it is, or is there another way?

I really don't want to force Param updates by changing Screen away/back pages repeatedly on a polling timer. Nor do I want to tell users "Sometimes it goes where it is supposed to go, other times it falls short."

[v-xida-msft · Accepted solution]

Hi @cycle4passion ,

Regarding the issue that you mentioned, I think this issue is related to the OnStart property of your canvas app.

Actually, the OnStart property of the App would be fired only when your canvas app is loaded. If your canvas app is running, and you switch to another page/screen, then return back, the OnStart property of the App would not be fired again any more (unless you re-load your Teams tab, then click the URL Link again).

As an solution, please consider set the OnVisible property of your Main Screen to following formula:

If(
   !IsBlank(Param("ID")), 
   Set(varHospitalMRN, Param("ID"));Navigate(EditScreen, Transition.None)
);

Please try above solution, then check if the issue is solved.

Regards,