google-services.json copy issue

[hr lumiins]

Hi All,

Trying to send message from backend to fronend (Android)

create a new project A "google-services.json"   and copied into my already existing project B ,(Android code)

i dont work, , cant copy the  "google-services.jso" file, into another project, wont work ??? 

Error shows in google app engine

{

  "error": {

    "code": 403,

    "message": "SenderId mismatch",

    "status": "PERMISSION_DENIED",

    "details": [

      {

        "@type": "type.googleapis.com/google.firebase.fcm.v1.FcmError",

        "errorCode": "SENDER_ID_MISMATCH"

      }

    ]

  }

}

 2020-05-21 17:12:57.018 CEST

[e~taxidealsnl/standard-project:dev.426832091122054509].<stderr>: com.google.firebase.messaging.FirebaseMessagingException: SenderId mismatch

2020-05-21 17:12:57.019 CEST[e~taxidealsnl/standard-project:dev.426832091122054509].<stderr>: at com.google.firebase.messaging.FirebaseMessagingClientImpl.newException(FirebaseMessagingClientImpl.java:307)

2020-05-21 17:12:57.019 CEST[e~taxidealsnl/standard-project:dev.426832091122054509].<stderr>: at com.google.firebase.messaging.FirebaseMessagingClientImpl.createExceptionFromResponse(FirebaseMessagingClientImpl.java:212)

2020-05-21 17:12:57.019 CEST[e~taxidealsnl/standard-project:dev.426832091122054509].<stderr>: at com.google.firebase.messaging.FirebaseMessagingClientImpl.send(FirebaseMessagingClientImpl.java:128)