Learn how to troubleshoot and fix issues with receiving duplicate push or in-app notifications in your app, including causes related to SDK versions, server-side logic, and multi-app environments.
What happens if I have 2 different notification SDKs in my app?
"custom"
key with an "i"
field. If your previous SDK does not check for this key, it may also handle and show the same notification."custom"
payload before processing or use your own payload keys to avoid duplicate handling.How to send push from a previous provider and OneSignal?