> For the complete documentation index, see [llms.txt](https://docs.zenlytic.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zenlytic.com/developers/api-reference/workspace-administration/workspace-members/user-attribute-values/create-user-attribute-value.md).

# Create User Attribute Value

Set a user attribute value directly on a user.

A value set here takes precedence over any value the user inherits from a group.

Returns 404 if `user_attribute_definition_id` doesn't reference an existing definition in the workspace.

Returns 409 if the user already has a value set for that definition - patch the existing value instead.

Returns 400 if `value` doesn't match the definition's `data_type` format: `YYYY-MM-DD` for `date`, a numeric string for `number`.

```json
{"openapi":"3.1.0","info":{"title":"FastAPI","version":"2.0.0"},"tags":[{"name":"User Attribute Values"}],"servers":[{"url":"https://api-external.zenlytic.com/api/v2","description":"US"},{"url":"https://euapi-external.zenlytic.com/api/v2","description":"EU"}],"security":[{"HTTPBearer":[]}],"components":{"securitySchemes":{"HTTPBearer":{"type":"http","description":"A Personal Access Token (PAT).","scheme":"bearer"}},"schemas":{"CreateUserAttributeSchema":{"properties":{"user_attribute_definition_id":{"type":"string","title":"User Attribute Definition Id","description":"ID of an existing definition in this workspace - see `GET .../user_attribute_definitions`."},"value":{"type":"string","title":"Value","description":"Must match the referenced definition's `data_type` format: \"string\" allows free text, \"number\" requires a parseable number, \"date\" requires `YYYY-MM-DD`."}},"type":"object","required":["user_attribute_definition_id","value"],"title":"CreateUserAttributeSchema"},"ApiV2Response_UserAttributeSchema_":{"properties":{"data":{"$ref":"#/components/schemas/UserAttributeSchema"},"meta":{"$ref":"#/components/schemas/MetaSchema"}},"type":"object","required":["data","meta"],"title":"ApiV2Response[UserAttributeSchema]"},"UserAttributeSchema":{"properties":{"id":{"type":"string","title":"Id"},"user_attribute_definition_id":{"type":"string","title":"User Attribute Definition Id","description":"ID of the definition this value is set against - see `GET .../user_attribute_definitions`."},"value":{"type":"string","title":"Value","description":"Formatted per `data_type`: \"string\" allows free text, \"number\" requires a parseable number, \"date\" requires `YYYY-MM-DD`."},"data_type":{"$ref":"#/components/schemas/UserAttributeDataType","description":"Determines `value`'s format: \"string\" allows free text, \"number\" requires a parseable number, \"date\" requires `YYYY-MM-DD`."},"name":{"type":"string","title":"Name","description":"The referenced `user_attribute_definition_id`'s `name`."},"source":{"$ref":"#/components/schemas/UserAttributeSource","description":"Whether this value is set directly on the user (\"user\") or inherited from a group (\"group\")."},"source_id":{"type":"string","title":"Source Id","description":"ID of the group or user (matching `source`) this value comes from."},"user_attribute_precedence":{"anyOf":[{"type":"integer"},{"type":"null"}],"title":"User Attribute Precedence","description":"The source group's precedence; null when `source` is \"user\" - only groups carry a precedence."},"is_overridden":{"type":"boolean","title":"Is Overridden","description":"True if a higher-precedence group value, or a directly-set user value, takes effect instead of this one."}},"type":"object","required":["id","user_attribute_definition_id","value","data_type","name","source","source_id","user_attribute_precedence","is_overridden"],"title":"UserAttributeSchema"},"UserAttributeDataType":{"type":"string","enum":["string","number","date"],"title":"UserAttributeDataType"},"UserAttributeSource":{"type":"string","enum":["user","group"],"title":"UserAttributeSource"},"MetaSchema":{"properties":{"status":{"$ref":"#/components/schemas/ResponseStatus"},"errors":{"items":{"$ref":"#/components/schemas/ErrorSchema"},"type":"array","title":"Errors","description":"Non-empty exactly when `status` is \"error\"."},"warnings":{"items":{"$ref":"#/components/schemas/WarningSchema"},"type":"array","title":"Warnings","description":"Can be non-empty even when `status` is \"success\" - a non-fatal issue with an otherwise-successful request."}},"type":"object","required":["status"],"title":"MetaSchema"},"ResponseStatus":{"type":"string","enum":["success","error"],"title":"ResponseStatus"},"ErrorSchema":{"properties":{"message":{"type":"string","title":"Message"},"status_code":{"anyOf":[{"type":"integer"},{"type":"null"}],"title":"Status Code","description":"Matches this response's actual HTTP status code."},"occurred_at":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Occurred At","description":"ISO 8601 UTC timestamp."},"error_code":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Error Code","description":"Machine-readable code for errors that need special handling (e.g. \"SSO_REQUIRED\") rather than being shown generically; null for most errors."},"error_metadata":{"anyOf":[{"$ref":"#/components/schemas/BaseErrorMetadata"},{"type":"null"}],"description":"Additional structured detail for specific error conditions; usually null."}},"type":"object","required":["message"],"title":"ErrorSchema"},"BaseErrorMetadata":{"properties":{},"type":"object","title":"BaseErrorMetadata"},"WarningSchema":{"properties":{"message":{"type":"string","title":"Message"}},"type":"object","required":["message"],"title":"WarningSchema"},"ApiV2ErrorResponse":{"properties":{"meta":{"$ref":"#/components/schemas/MetaSchema"}},"type":"object","required":["meta"],"title":"ApiV2ErrorResponse"}}},"paths":{"/workspaces/{workspace_id}/members/{user_id}/user_attributes":{"post":{"tags":["User Attribute Values"],"summary":"Create User Attribute Value","description":"Set a user attribute value directly on a user.\n\nA value set here takes precedence over any value the user inherits from a group.\n\nReturns 404 if ``user_attribute_definition_id`` doesn't reference an existing\ndefinition in the workspace.\n\nReturns 409 if the user already has a value set for that definition - patch the\nexisting value instead.\n\nReturns 400 if ``value`` doesn't match the definition's ``data_type`` format:\n``YYYY-MM-DD`` for ``date``, a numeric string for ``number``.","operationId":"create_member_user_attribute_workspaces__workspace_id__members__user_id__user_attributes_post","parameters":[{"name":"workspace_id","in":"path","required":true,"schema":{"type":"string","title":"Workspace Id"}},{"name":"user_id","in":"path","required":true,"schema":{"type":"string","title":"User Id"}}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/CreateUserAttributeSchema"}}}},"responses":{"201":{"description":"Successful Response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiV2Response_UserAttributeSchema_"}}}},"4XX":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiV2ErrorResponse"}}},"description":"Client Error"},"5XX":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiV2ErrorResponse"}}},"description":"Server Error"}}}}}}
```


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