Question about Firebase Cloud Messaging API(V1)

[Johnson Lin]

Hi Team, we are Migrating from legacy FCM APIs to HTTP v1, and got some questions, need your help.

1. Could one firebase project use two different firebase service account to generate each private key? I try to create two firebase service account, but can not switch account when generate private key.

2. We know that every time when generate private key, the key will be different, in one firebase project and in one android application, if two or more backend system using one firebase service account with different private key, could them work well without impacting each other in one application?

3. In one android application, if two backend system using one firebase service account with same private key, will them impact each other?

Thanks in advance.