> ## Documentation Index > Fetch the complete documentation index at: https://docs.corbado.com/llms.txt > Use this file to discover all available pages before exploring further. # Update a login identifier for a user > Updates a login identifier (e.g. from `pending` to `verified`) for a user by given `userID` and `identifierID`. ## OpenAPI ````yaml https://backendapi.cloud.corbado.io/v2/openapi.yaml patch /users/{userID}/identifiers/{identifierID} openapi: 3.0.3 info: version: 2.0.0 title: Corbado Backend API description: > # Introduction This documentation gives an overview of all Corbado Backend API calls to implement passwordless authentication with Passkeys. contact: name: Corbado team email: support@corbado.com url: https://www.corbado.com servers: - url: https://backendapi.corbado.io/v2 security: - basicAuth: [] tags: - name: Users description: All API calls to manage users - name: Sessions description: All API calls to manage sessions - name: Challenges description: All API calls to manage challenges - name: Identifiers description: All API calls to manage login identifiers - name: Passkeys description: All API calls for passkey flows - name: SSO description: All API calls for SSO flows - name: AuthEvents description: All API calls to manage authentication events - name: PasskeyEvents description: All API calls to manage passkey events - name: ProjectConfig description: All API calls to manage project configurations - name: ConnectTokens description: All API calls to manage connectTokens - name: PasskeyChallenges description: All API calls to manage passkey challenges - name: WebhookEndpoints description: All API calls to manage webhook endpoints - name: PasswordManagers description: All API calls to manage password managers - name: ClientEnvs description: All API calls to manage client environments - name: Devices description: All API calls to manage devices - name: Exports description: All API calls to manage project export files paths: /users/{userID}/identifiers/{identifierID}: patch: tags: - Identifiers summary: Update a login identifier for a user description: > Updates a login identifier (e.g. from `pending` to `verified`) for a user by given `userID` and `identifierID`. operationId: IdentifierUpdate parameters: - $ref: '#/components/parameters/userID' - $ref: '#/components/parameters/identifierID' requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/identifierUpdateReq' responses: '200': description: Identifier has been updated. content: application/json: schema: $ref: '#/components/schemas/identifier' default: $ref: '#/components/responses/error' security: - basicAuth: [] components: parameters: userID: name: userID in: path description: | Unique identifier of the user. Format: `usr-`. required: true schema: type: string example: usr-4693224802260150919 identifierID: name: identifierID in: path description: > Unique identifier of the login identifier (e.g., email address or phone number). Format: `ide-`. required: true schema: type: string example: ide-4693224802260150919 schemas: identifierUpdateReq: type: object required: - status properties: status: $ref: '#/components/schemas/identifierStatus' identifier: type: object required: - identifierID - type - value - status - userID properties: identifierID: type: string description: Unique identifier of the login identifier. example: ide-4693224802260150919 type: $ref: '#/components/schemas/identifierType' value: type: string description: Value of the identifier (here email address). example: jane@doe.com status: $ref: '#/components/schemas/identifierStatus' userID: type: string description: Unique identifier of the user. example: usr-4693224802260150919 identifierStatus: type: string enum: - pending - primary - verified identifierType: type: string enum: - email - phone - username responses: error: description: Error content: application/json: schema: allOf: - type: object required: - httpStatusCode - message - requestData - runtime properties: httpStatusCode: description: HTTP status code of operation type: integer format: int32 message: type: string example: OK requestData: description: Data about the request itself, can be used for debugging type: object required: - requestID properties: requestID: description: >- Unique ID of request, you can provide your own while making the request, if not the ID will be randomly generated on server side type: string example: req-557...663 link: description: Link to dashboard with details about request type: string example: >- https://my.corbado.com/requests/req-xxxxxxxxxxxxxxxxxxx runtime: description: Runtime in seconds for this request type: number format: float example: 0.06167686 - type: object required: - error properties: data: type: object error: type: object required: - type properties: type: description: Type of error type: string details: description: Details of error type: string validation: description: Validation errors per field type: array items: type: object required: - field - message properties: field: type: string message: type: string links: description: Additional links to help understand the error type: array items: type: string securitySchemes: basicAuth: type: http scheme: basic description: > Basic authentication is used to authenticate requests to the Backend API. The username is the project ID and the password is the API secret. The project ID and API secret can be found in the [Developer Panel](https://app.corbado.com/settings/api-secrets). ````