# UpdateRecDefinition

`UpdateRecDefinition`

`PUT /api/recs/definitions/{scope}/{code}`

- [OpenAPI fragment](https://www.lusid.com/docs/api/lusid/endpoints/recs/UpdateRecDefinition.json)
- [Rendered page](https://www.lusid.com/docs/api/lusid/endpoints/recs/UpdateRecDefinition)

Overwrite an existing rec definition identified by scope and code.
The update request has the same required fields as create, apart from the identifier.
Properties are merged rather than overwritten - each property supplied is set, a property supplied with a null
value is deleted, and any property not supplied is left unchanged.

## Referenced schemas

- [UpdateRecDefinitionRequest](https://www.lusid.com/docs/api/lusid/schemas/UpdateRecDefinitionRequest.txt)
- [RecDefinition](https://www.lusid.com/docs/api/lusid/schemas/RecDefinition.txt)

[< Recs](https://www.lusid.com/docs/api/lusid/endpoints/recs/llms.txt)