Indicates a validation error with the custom token.

Indicates the service account and the API key belong to different projects.

Indicates the IDP token or requestUri is invalid.

Indicates the user’s account is disabled on the server.

Indicates the administrator disabled sign in with the specified identity provider.

Indicates the email used to attempt a sign up is already in use.

Indicates the email is invalid.

Indicates the user attempted sign in with a wrong password.

Indicates that too many requests were made to a server method.

Indicates the user account was not found.

Indicates account linking is required.

Indicates the user has attempted to change email or password more than 5 minutes after signing in.

Indicates an attempt to link a provider to which the account is already linked.

Indicates an attempt to unlink a provider that is not linked.

Indicates user’s saved auth credential is invalid the user needs to sign in again.

Indicates a network error occurred (such as a timeout interrupted connection or unreachable host). These types of errors are often recoverable with a retry. The NSUnderlyingError field in the NSError.userInfo dictionary will contain the error encountered.

Indicates the saved token has expired for example the user may have changed account password on another device. The user needs to sign in again on the device that made this request.

Indicates an invalid API key was supplied in the request.

Indicates that an attempt was made to reauthenticate with a user which is not the current user.

Indicates an attempt to link with a credential that has already been linked with a different Firebase account.

Indicates an attempt to set a password that is considered too weak.

Indicates the App is not authorized to use Firebase Authentication with the provided API Key.

Indicates the OOB code is expired.

Indicates the OOB code is invalid.

Indicates that there are invalid parameters in the payload during a “send password reset email” attempt.

Indicates that the sender email is invalid during a “send password reset email” attempt.

Indicates that the recipient email is invalid.

Indicates that an email address was expected but one was not provided.

Indicates that the iOS bundle ID is missing when a iOS App Store ID is provided.

Indicates that the android package name is missing when the androidInstallApp flag is set to true.

Indicates that the domain specified in the continue URL is not allowlisted in the Firebase console.

Indicates that the domain specified in the continue URI is not valid.

Indicates that a continue URI was not provided in a request to the backend which requires one.

Indicates that a phone number was not provided in a call to verifyPhoneNumber:completion:.

Indicates that an invalid phone number was provided in a call to verifyPhoneNumber:completion:.

Indicates that the phone auth credential was created with an empty verification code.

Indicates that an invalid verification code was used in the verifyPhoneNumber request.

Indicates that the phone auth credential was created with an empty verification ID.

Indicates that an invalid verification ID was used in the verifyPhoneNumber request.

Indicates that the APNS device token is missing in the verifyClient request.

Indicates that an invalid APNS device token was used in the verifyClient request.

Indicates that the SMS code has expired.

Indicates that the quota of SMS messages for a given project has been exceeded.

Indicates that the APNs device token could not be obtained. The app may not have set up remote notification correctly or may fail to forward the APNs device token to Auth if app delegate swizzling is disabled.

Indicates that the app fails to forward remote notification to FIRAuth.

Indicates that the app could not be verified by Firebase during phone number authentication.

Indicates that the reCAPTCHA token is not valid.

Indicates that an attempt was made to present a new web context while one was already being presented.

Indicates that the URL presentation was cancelled prematurely by the user.

Indicates a general failure during the app verification flow.

Indicates that the clientID used to invoke a web flow is invalid.

Indicates that a network request within a SFSafariViewController or WKWebView failed.

Indicates that an internal error occurred within a SFSafariViewController or WKWebView.

Indicates a general failure during a web sign-in flow.

Indicates that the local player was not authenticated prior to attempting Game Center signin.

Indicates that a non-null user was expected as an argument to the operation but a null user was provided.

Indicates that a Firebase Dynamic Link is not activated.

Represents the error code for when the given provider id for a web operation is invalid.

Represents the error code for when an attempt is made to update the current user with a tenantId that differs from the current FirebaseAuth instance’s tenantId.

Represents the error code for when a request is made to the backend with an associated tenant ID for an operation that does not support multi-tenancy.

Indicates that the Firebase Dynamic Link domain used is either not configured or is unauthorized for the current project.

Indicates that the credential is rejected because it’s malformed or mismatching.

Indicates that the GameKit framework is not linked prior to attempting Game Center signin.

Indicates that the second factor is required for signin.

Indicates that the multi factor session is missing.

Indicates that the multi factor info is missing.

Indicates that the multi factor session is invalid.

Indicates that the multi factor info is not found.

Indicates that the operation is admin restricted.

Indicates that the email is required for verification.

Indicates that the second factor is already enrolled.

Indicates that the maximum second factor count is exceeded.

Indicates that the first factor is not supported.

Indicates that the a verified email is required to changed to.

Indicates that the request does not contain a client identifier.

Indicates that the nonce is missing or invalid.

Raised when n Cloud Function returns a blocking error. Will include a message returned from the function.

Indicates that reCAPTCHA Enterprise integration is not enabled for this project.

Indicates that the reCAPTCHA token is missing from the backend request.

Indicates that the reCAPTCHA token sent with the backend request is invalid.

Indicates that the requested reCAPTCHA action is invalid.

Indicates that the client type is missing from the request.

Indicates that the reCAPTCHA version is missing from the request.

Indicates that the reCAPTCHA version sent to the backend is invalid.

Indicates that the request type sent to the backend is invalid.

Indicates that the reCAPTCHA SDK is not linked to the app.

Indicates that the reCAPTCHA SDK site key wasn’t found.

Indicates that the reCAPTCHA SDK actions class failed to create.

Indicates an error occurred while attempting to access the keychain.

Indicates an internal error occurred.

Raised when a JWT fails to parse correctly. May be accompanied by an underlying error describing which step of the JWT parsing process failed.

The error code. It’s redundant but implemented for compatibility with the Objective-C implementation.