How to handle if merchant push cancel button on billing API?

[Darius90]

Hi, on app installation when a customer cancels the payment app is still installed and can be used. How to check if the customer accepted or not payment so I can redirect?

[Todd_Trimakas]

I'm in the same boat.. this is crazy, but all I've seen is that we're not notified if a shop presses the cancel button.. 

[Darius90]

after 6 months still with no answer...