When ever a whatsapp notification was received through the listerner notification service, there is one other notification that was received (hidden) that has a tag value something like this: XXXXXXX@s.whatsapp.net (xxxxxxx is a phone number), I think itβs somehow contains a key to send a response to this user.
I am working on a different application logic that does not require you to send answers, but I found it interesting, but I could not get enough time to test it myself.
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