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Problem

In Push campaigns, under campaign failures breakdown, the following error is displayed: INVALID_SERVER_CREDS

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Solution

  • You are receiving the “INVALID_SERVER_CREDS” error because the sender ID and server key provided may belong to different GCM or FCM projects.
  • To resolve this issue, use the configured sender ID and server key.
  • Ensure that you have the accurate FCM keys (or certificate) in your Push settings and include the ServiceKey.json file instead of the google-services.json file (if you have added it).
  • Verify the Private key file (Recommended) on the MoEngage dashboard.
    • Open the private key JSON file using any text editor.
    • Check that the project_id mentioned in the JSON file matches the Firebase Project ID.
    • If you already have a private key on the Service Accounts page, you need not generate a new one.
      In FCM projects, the sender ID can be found in the google-services.json file.