> ## 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 Title Data > Updates the key-value store of custom title settings ## Error codes This operation may return the following PlayFab errors: | Error | Code | | --- | --- | | DataLengthExceeded | 1146 | | TooManyKeys | 1147 | ## OpenAPI ````yaml /services/playfab/api-references/rest/server/server.openapi.json post /Server/SetTitleData openapi: 3.0.0 info: version: '260922' title: PlayFab Server API description: >- Provides functionality to allow external (developer-controlled) servers to interact with user inventories and data in a trusted manner, and to handle matchmaking and client connection orchestration 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: 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 paths: /Server/SetTitleData: post: tags: - Title-Wide Data Management summary: Set Title Data description: | Updates the key-value store of custom title settings ## Error codes This operation may return the following PlayFab errors: | Error | Code | | --- | --- | | DataLengthExceeded | 1146 | | TooManyKeys | 1147 | operationId: SetTitleData requestBody: $ref: '#/components/requestBodies/SetTitleDataRequest' responses: '200': $ref: '#/components/responses/SetTitleDataResult' '400': $ref: '#/components/responses/ApiErrorWrapper' security: - SecretKey: [] components: requestBodies: SetTitleDataRequest: content: application/json: schema: $ref: '#/components/schemas/SetTitleDataRequest' description: >- This API is designed to store title specific values which can be read, but not written to, by the client. For example, a developer could choose to store values which modify the user experience, such as enemy spawn rates, weapon strengths, movement speeds, etc. This allows a developer to update the title without the need to create, test, and ship a new build. This operation is additive. If a Key does not exist in the current dataset, it will be added with the specified Value. If it already exists, the Value for that key will be overwritten with the new Value. responses: SetTitleDataResult: 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/SetTitleDataResult' ApiErrorWrapper: description: This is the outer wrapper for all responses with errors content: application/json: schema: $ref: '#/components/schemas/ApiErrorWrapper' schemas: SetTitleDataRequest: description: >- This API is designed to store title specific values which can be read, but not written to, by the client. For example, a developer could choose to store values which modify the user experience, such as enemy spawn rates, weapon strengths, movement speeds, etc. This allows a developer to update the title without the need to create, test, and ship a new build. This operation is additive. If a Key does not exist in the current dataset, it will be added with the specified Value. If it already exists, the Value for that key will be overwritten with the new Value. type: object properties: Key: description: >- key we want to set a value on (note, this is additive - will only replace an existing key's value if they are the same name.) Keys are trimmed of whitespace. Keys may not begin with the '!' character. type: string Value: description: new value to set. Set to null to remove a value type: string required: - Key example: Key: Running Speed Value: '1.03' SetTitleDataResult: type: object properties: {} 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 securitySchemes: SecretKey: type: apiKey in: header name: X-SecretKey description: >- This API requires a title secret key, available to title admins, from PlayFab Game Manager. ```` ## Related topics - [Set Title Data](/services/playfab/api-references/rest/server/title-wide-data-management/set-title-data.md) - [Set Title Data And Overrides](/api-reference/title-wide-data-management/set-title-data-and-overrides.md) - [Title Data quickstart](/services/playfab/live-service-management/game-configuration/titledata/quickstart.md) - [PFTitleDataManagementSetTitleDataRequest](/services/playfab/api-references/c/pftitledatamanagementtypes/structs/pftitledatamanagementsettitledatarequest.md) - [PFTitleDataManagementServerSetTitleDataAsync](/services/playfab/api-references/c/pftitledatamanagement/functions/pftitledatamanagementserversettitledataasync.md)