I am continuously getting the following error (400 bad requests) while Sending a Push Notification using Microsoft Flow.
Before using the action Send push notification, have you created a connection to the app properly?
Please click the Connections, then create a connection to PowerApps notification with the proper URL or ID to the Target application.
Please check the following screenshot for a reference.
I have made a test on my side and it works fine.
Hope this doc on sending a notification from a flow could be your reference:
I did the same steps and did those a number of times but I am still getting the same. I then thought may be i am getting this error since I had selected the Asia region. I then created a trail for United States region and again got the same error. I am not sure whats wrong though. Afterwards, I thought may be App ID isnt working then I gave the Power App complete URL but again got the same failures. I took the Web Link and App ID from Details section of the Power App.
I am not sure whats wrong but the connector started working without changing anything a couple of days later.
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