@robayzma `gcm` for Android in registration call payload is present due to legacy reasons. Campaign uses fcm APIs in the background whether `gcm` or `fcm` is sent in the payload. For the incongruent behavior you mentioned regarding the push notifications between workflow behavior and transactional m...

@robayzma The payload containing the push platform information is currently sent from within the SDK as part of Campaign registration call based on the platform (android - `gcm` or `fcm` and iOS - `apns`). You should be able to update the value using a launch postback rule but we do not recommend it...