'How to embed dynamic content into OneSignal push notification template?

We are using OneSignal as push notification service for our game. I read documantation several times but I couldnt find proper way to add data that is not tagged to a message template.

We have message templates on OneSignal and sending notifications from .net backend.

SCENARIO

  1. User1 sends friend request to user2 through our backend.
  2. Backend insert friend request
  3. Backend send push notification to user2 using OneSignal.

We have a message template for case ' an user sends a friend request to another user' In message I should mention sender users username. Tags is not feasable since sendee user didnt know anything about sender yet.

Thank you

I tried reading documentation and using tags. But I think there has to be another way.



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