# TransitionRecInstance `TransitionRecInstance` `POST /api/recs/instances/{instanceIdType}/{instanceIdValue}/$transition` - [OpenAPI fragment](https://www.lusid.com/docs/api/lusid/endpoints/recs/TransitionRecInstance.json) - [Rendered page](https://www.lusid.com/docs/api/lusid/endpoints/recs/TransitionRecInstance) Apply a lifecycle transition (re-run, lock or unlock) to a rec instance. ## Referenced schemas - [TransitionRecInstanceRequest](https://www.lusid.com/docs/api/lusid/schemas/TransitionRecInstanceRequest.txt) - [RecInstance](https://www.lusid.com/docs/api/lusid/schemas/RecInstance.txt) [< Recs](https://www.lusid.com/docs/api/lusid/endpoints/recs/llms.txt)