> ## 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. # Set Profile Language > Updates the entity's language. The precedence hierarchy for communication to the player is Title Player Account language, Master Player Account language, and then title default language if the first two aren't set or supported. ## OpenAPI ````yaml /services/playfab/api-references/rest/profiles/profiles.openapi.json post /Profile/SetProfileLanguage openapi: 3.0.0 info: version: '260922' title: PlayFab Profiles API description: >- All PlayFab entities have profiles, which hold top-level properties about the entity. These APIs give you the tools needed to manage entity profiles. 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 paths: /Profile/SetProfileLanguage: post: tags: - Account Management summary: Set Profile Language description: >- Updates the entity's language. The precedence hierarchy for communication to the player is Title Player Account language, Master Player Account language, and then title default language if the first two aren't set or supported. operationId: SetProfileLanguage requestBody: content: application/json: schema: $ref: '#/components/schemas/SetProfileLanguageRequest' description: >- Given an entity profile, will update its language to the one passed in if the profile's version is equal to the one passed in. responses: '200': $ref: '#/components/responses/SetProfileLanguageResponse' '400': $ref: '#/components/responses/ApiErrorWrapper' security: - EntityToken: [] components: schemas: SetProfileLanguageRequest: description: >- Given an entity profile, will update its language to the one passed in if the profile's version is equal to the one passed in. type: object properties: CustomTags: description: >- The optional custom tags associated with the request (e.g. build number, external trace identifiers, etc.). type: object Entity: allOf: - $ref: '#/components/schemas/EntityKey' description: >- The optional entity to perform this action on. Defaults to the currently logged in entity. ExpectedVersion: description: The expected version of a profile to perform this update on type: number x-actualtype: int32 Language: description: >- The language to set on the given entity. Deletes the profile's language if passed in a null string. type: string example: Language: en ExpectedVersion: 123 Entity: Id: '1234' Type: title_player_account TypeString: title_player_account EntityKey: description: >- Combined entity type and ID structure which uniquely identifies a single entity. type: object properties: Id: description: Unique ID of the entity. type: string Type: description: >- Entity type. See https://learn.microsoft.com/gaming/playfab/features/data/entities/available-built-in-entity-types type: string required: - Id SetProfileLanguageResponse: type: object properties: OperationResult: allOf: - $ref: '#/components/schemas/OperationTypes' description: The type of operation that occured on the profile's language VersionNumber: description: The updated version of the profile after the language update type: number x-actualtype: int32 example: VersionNumber: 124 OperationResult: Updated 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 OperationTypes: type: string enum: - Created - Updated - Deleted - None responses: SetProfileLanguageResponse: 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/SetProfileLanguageResponse' example: code: 200 status: OK data: VersionNumber: 124 OperationResult: Updated ApiErrorWrapper: description: This is the outer wrapper for all responses with errors content: application/json: schema: $ref: '#/components/schemas/ApiErrorWrapper' securitySchemes: EntityToken: type: apiKey in: header name: X-EntityToken description: >- This API requires an Entity Session Token, available from the Entity GetEntityToken method. ```` ## Related topics - [Set Profile Language](/services/playfab/api-references/rest/profiles/account-management/set-profile-language.md) - [PFProfilesSetProfileLanguageRequest](/services/playfab/api-references/c/pfprofilestypes/structs/pfprofilessetprofilelanguagerequest.md) - [PFProfilesSetProfileLanguageAsync](/services/playfab/api-references/c/pfprofiles/functions/pfprofilessetprofilelanguageasync.md) - [PFProfilesSetProfileLanguageResponse](/services/playfab/api-references/c/pfprofilestypes/structs/pfprofilessetprofilelanguageresponse.md) - [PFProfilesSetProfileLanguageGetResult](/services/playfab/api-references/c/pfprofiles/functions/pfprofilessetprofilelanguagegetresult.md)