> 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/update-user-attribute-value.md).

# Update User Attribute Value

Update the value of a user attribute set directly on a user.

Only `value` is mutable; to point at a different definition, delete this value and create a new one.

Returns 400 if `value` doesn't match the existing 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":{"UpdateUserAttributeSchema":{"properties":{"value":{"type":"string","title":"Value","description":"Must match the existing definition's `data_type` format: \"string\" allows free text, \"number\" requires a parseable number, \"date\" requires `YYYY-MM-DD`."}},"type":"object","required":["value"],"title":"UpdateUserAttributeSchema"},"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":{"$ref":"#/components/schemas/MetaSchema"}},"type":"object","required":["meta"],"title":"ApiV2ErrorResponse"}}},"paths":{"/workspaces/{workspace_id}/members/{user_id}/user_attributes/{user_attribute_id}":{"patch":{"tags":["User Attribute Values"],"summary":"Update User Attribute Value","description":"Update the value of a user attribute set directly on a user.\n\nOnly ``value`` is mutable; to point at a different definition, delete this value and\ncreate a new one.\n\nReturns 400 if ``value`` doesn't match the existing definition's ``data_type`` format:\n``YYYY-MM-DD`` for ``date``, a numeric string for ``number``.","operationId":"update_member_user_attribute_workspaces__workspace_id__members__user_id__user_attributes__user_attribute_id__patch","parameters":[{"name":"workspace_id","in":"path","required":true,"schema":{"type":"string","title":"Workspace Id"}},{"name":"user_id","in":"path","required":true,"schema":{"type":"string","title":"User Id"}},{"name":"user_attribute_id","in":"path","required":true,"schema":{"type":"string","title":"User Attribute Id"}}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/UpdateUserAttributeSchema"}}}},"responses":{"200":{"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"}}}}}}
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.zenlytic.com/developers/api-reference/workspace-administration/workspace-members/user-attribute-values/update-user-attribute-value.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.