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.
Three Super User rank tiers have been launched!
Features releasing from October 2020 through March 2021
We've updated and improved the layout and uploading format of the Power Automate Cookbook!
Fill out a quick form to claim your user group badge now!