If successful, the return object contains the displayLanguage that was saved for the user, which may differ from the value passed into the request. This is because the requested displayLanguage may not be directly supported by Gmail but have a close variant that is, and so the variant may be chosen and saved instead.
HTTP request
PUT https://gmail.googleapis.com/gmail/v1/users/{userId}/settings/language
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-24 UTC."],[],[],null,["# Method: users.settings.updateLanguage\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n- [Try it!](#try-it)\n\nUpdates language settings.\n\nIf successful, the return object contains the `displayLanguage` that was saved for the user, which may differ from the value passed into the request. This is because the requested `displayLanguage` may not be directly supported by Gmail but have a close variant that is, and so the variant may be chosen and saved instead.\n\n### HTTP request\n\n`PUT https://gmail.googleapis.com/gmail/v1/users/{userId}/settings/language`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n| Parameters ||\n|----------|-------------------------------------------------------------------------------------------------------|\n| `userId` | `string` User's email address. The special value \"me\" can be used to indicate the authenticated user. |\n\n### Request body\n\nThe request body contains an instance of [LanguageSettings](/workspace/gmail/api/reference/rest/v1/LanguageSettings).\n\n### Response body\n\nIf successful, the response body contains an instance of [LanguageSettings](/workspace/gmail/api/reference/rest/v1/LanguageSettings).\n\n### Authorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/gmail.settings.basic`\n\nFor more information, see the [Authorization guide](/workspace/guides/configure-oauth-consent)."]]
