Troubleshooting Android, Chrome, Firefox errors

Error	Description	What to do
AuthenticationError	FCM authentication failed due to invalid credentials.	Check that the credentials, ServerKey, and SenderID specified in the Pushwoosh Control Panel are correct.
DisabledFirebaseAPI	Sending pushes via the new HTTP v1 protocol is disabled in the FCM console.	Enable sending push notifications in the FCM Console using the new HTTP v1 protocol.
EmptyCredentials	Failed to send a push notification using any of the specified credentials. The credentials specified in the Pushwoosh Control Panel are invalid.	Reconfigure the platform (Settings → Configure platform).
FCMInternalServerError	FCM failed to deliver the message to the device. This usually means that the FCM service is temporarily unavailable.	Try again after a while.
FrequencyCapping	The device was filtered by Frequency Capping.	If such behavior was not intended, check the Frequency Capping settings.
InternalServerError	FCM failed to deliver the message to the device. This usually means that the FCM service is temporarily unavailable.	Try again after a while.
InvalidCredentials	When configuring the platform, you added incorrect JSON with FCM credentials or specified incorrect SenderID or ServerKey.	Reconfigure the platform using the correct credentials, SenderID, and ServerKey from the FCM Console.
InvalidEndpoint	This is an internal FCM error that means the push is sent to an invalid address.	Try again after a while.
InvalidPrivateKey	The private key specified in the private_key field in the FCM credentials has an invalid structure.	Reconfigure the platform in the Pushoowsh Control Panel and re-upload JSON with credentials.
InvalidRegistration	The push token is invalid; the device will be unsubscribed from notifications.	Use the valid token and check whether you have enabled notifications from your app on the device.
MessageTooBig	Message size exceeds the 4096 bytes FCM limit.	Reduce the size of the message you send.
MistmatchSenderId	The error occurs for one of the following reasons: The sender ID specified in your app does not match the sender ID specified in the Pushwoosh Control Panel when configuring the platform. The sender ID in your app does not match the sender ID associated with the FCM credentials you used.	Ensure you are using a valid sender ID from Firebase Console in your application and Pushwoosh platform configuration.
NotFound	This is an internal FCM error that means the FCM service is currently unavailable.	Try again after a while.
NotRegistered	Device is not registered. This status means one of the following: The device was unsubscribed from notifications; The application was deleted from the device; The push token of the device has expired.	Try using a new token.
PermissionDenied	Credentials specified in the Pushwoosh Control Panel do not grant permission to send push notifications. This means that push notifications cannot be sent from this FCM account.	Get the credentials with the correct permissions according to the Firebase documentation. When generating credentials to send messages, you must have the Firebase Admin role or a role with the ‘cloudmessaging.messages.create’ permission.
SenderIDMistmatch	The error occurs for one of the following reasons: The sender ID specified in your app does not match the sender ID specified in the Pushwoosh Control Panel when configuring the platform. The sender ID in your app does not match the sender ID associated with the FCM credentials you used.	Ensure you are using a valid sender ID from Firebase Console in your application and Pushwoosh platform configuration.
TokenIsEmpty	The following reasons can cause the error: The device does not have a token. The token was not transmitted when registering the device. When the request was sent, the device did not have a token, but for some reason, it was transmitted to our device database.	If you see this error frequently, please contact our Customer Support Team.
Unavailable	Failed to send the message to FCM after several attempts. This usually means that the FCM service is temporarily unavailable.	Try again after a while. If you see this error frequently, please contact our Customer Support Team.
Unregistered	Device is not registered. This status means one of the following: The device was unsubscribed from notifications; The application was deleted from the device; The push token of the device has expired.	Try using a new token.
UnsupportedTokenType	The token is invalid; the device will be unsubscribed from notifications.	Use the valid token.