> ## Documentation Index > Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt > Use this file to discover all available pages before exploring further. # Update Character Data > Creates and updates the title-specific custom data for the user's character which is readable and writable by the client ## Error codes This operation may return the following PlayFab errors: | Error | Code | | --- | --- | | CharacterNotFound | 1135 | ## OpenAPI ````yaml post /Client/UpdateCharacterData openapi: 3.0.0 info: version: '260922' title: PlayFab Client API description: >- APIs which provide the full range of PlayFab features available to the client - authentication, account and data management, inventory, friends, matchmaking, reporting, and platform-specific functionality termsOfService: https://playfab.com/terms/ contact: url: https://community.playfab.com/index.html license: name: Apache 2.0 url: https://github.com/PlayFab/API_Specs/blob/master/LICENSE servers: - url: https://{titleId}.playfabapi.com description: PlayFab title endpoint variables: titleId: default: your_title_id description: Your PlayFab title ID (hex). security: [] tags: - name: Account Management description: Account Management APIs - name: Advertising description: Advertising APIs - name: Analytics description: Analytics APIs - name: Authentication description: Authentication APIs - name: Character Data description: Character Data APIs - name: Characters description: Characters APIs - name: Content description: Content Service APIs - name: Friend List Management description: Friend List Management APIs - name: Matchmaking description: Matchmaking APIs - name: Platform Specific Methods description: Platform Specific Methods APIs - name: Player Data Management description: Player Data Management APIs - name: Player Item Management description: Player Item Management APIs - name: PlayStream description: PlayStream Management APIs - name: Server-Side Cloud Script description: Server-Side Cloud Script APIs - name: Shared Group Data description: Shared Group Data APIs - name: Title-Wide Data Management description: Title-Wide Data Management APIs - name: Trading description: Trading Management APIs paths: /Client/UpdateCharacterData: post: tags: - Character Data summary: Update Character Data description: > Creates and updates the title-specific custom data for the user's character which is readable and writable by the client ## Error codes This operation may return the following PlayFab errors: | Error | Code | | --- | --- | | CharacterNotFound | 1135 | operationId: UpdateCharacterData requestBody: content: application/json: schema: $ref: '#/components/schemas/UpdateCharacterDataRequest' description: >- This function performs an additive update of the arbitrary strings containing the custom data for the character. In updating the custom data object, keys which already exist in the object will have their values overwritten, while keys with null values will be removed. New keys will be added, with the given values. No other key-value pairs will be changed apart from those specified in the call. responses: '200': $ref: '#/components/responses/UpdateCharacterDataResult' '400': $ref: '#/components/responses/ApiErrorWrapper' security: - SessionTicket: [] components: schemas: UpdateCharacterDataRequest: description: >- This function performs an additive update of the arbitrary strings containing the custom data for the character. In updating the custom data object, keys which already exist in the object will have their values overwritten, while keys with null values will be removed. New keys will be added, with the given values. No other key-value pairs will be changed apart from those specified in the call. type: object properties: CharacterId: description: Unique PlayFab assigned ID for a specific character owned by a user type: string CustomTags: description: >- The optional custom tags associated with the request (e.g. build number, external trace identifiers, etc.). type: object Data: description: >- Key-value pairs to be written to the custom data. Note that keys are trimmed of whitespace, are limited in size, and may not begin with a '!' character or be null. type: object KeysToRemove: description: >- Optional list of Data-keys to remove from UserData. Some SDKs cannot insert null-values into Data due to language constraints. Use this to delete the keys directly. type: array items: type: string Permission: allOf: - $ref: '#/components/schemas/UserDataPermission' description: >- Permission to be applied to all user data keys written in this request. Defaults to "private" if not set. required: - CharacterId example: CharacterId: '98765456' Data: Class: Fighter Gender: Female Icon: Guard 3 Theme: Colorful Permission: Public UserDataPermission: description: >- Indicates whether a given data key is private (readable only by the player) or public (readable by all players). When a player makes a GetUserData request about another player, only keys marked Public will be returned. type: string enum: - Private - Public UpdateCharacterDataResult: type: object properties: DataVersion: description: >- Indicates the current version of the data that has been set. This is incremented with every set call for that type of data (read-only, internal, etc). This version can be provided in Get calls to find updated data. type: number x-actualtype: uint32 required: - DataVersion example: DataVersion: 5 ApiErrorWrapper: description: The basic wrapper around every failed API response type: object properties: code: description: Numerical HTTP code type: integer status: description: String HTTP code type: string error: description: Playfab error code type: string errorCode: description: Numerical PlayFab error code type: integer errorMessage: description: Description for the PlayFab errorCode type: string errorDetails: description: Detailed description of individual issues with the request object type: object required: - code - errorCode responses: UpdateCharacterDataResult: description: '' content: application/json: schema: type: object properties: code: type: integer description: >- The Http status code. If X-ReportErrorAsSuccess header is set to true, this will report the actual http error code. status: type: string description: The Http status code as a string. data: $ref: '#/components/schemas/UpdateCharacterDataResult' example: code: 200 status: OK data: DataVersion: 5 ApiErrorWrapper: description: This is the outer wrapper for all responses with errors content: application/json: schema: $ref: '#/components/schemas/ApiErrorWrapper' securitySchemes: SessionTicket: type: apiKey in: header name: X-Authorization description: >- This API requires a client session ticket, available from any Client Login function. ```` ## Related topics - [Update Character Data](/services/playfab/api-references/rest/server/character-data/update-character-data.md) - [Profile Writes Meter API Description](/services/playfab/pricing/meters/profile-writes.md) - [Entities migration information](/services/playfab/live-service-management/game-configuration/entities/migration-information.md) - [Update Character Internal Data](/services/playfab/api-references/rest/server/character-data/update-character-internal-data.md) - [Update Character Read Only Data](/services/playfab/api-references/rest/server/character-data/update-character-read-only-data.md)