What it does: Deletes every saved mapping of your account for the hotel, so the next POST /rooms/match/async for it grades every room afresh, for example under a new scoring profile. Nothing else is touched. 409 while a job of yours is in flight for the hotel.

Destructive and immediate; every purge is written to your mapping audit log.

Available to accounts with their own isolated room-mapping cache; others receive 409. Details: Implementation Workflow (doc page: implementation-workflow).