Can I create custom error codes for my Firebase applications?

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Grade: Education Subject: Support
Can I create custom error codes for my Firebase applications?
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No, you cannot create custom error codes for Firebase services like Firestore, Authentication, or Storage. Firebase error codes are a standardized system maintained by Google. Attempting to use custom error codes will not be recognized by the Firebase SDK or services. You *can* implement custom error handling logic within your application to provide more specific error messages or take different actions based on the returned Firebase error codes.