Unpauses a stateful sandbox simulation that is currently waiting at an intermediate state (awaiting_advance = true). Use this to drive compliance_hold, manual_review, and unconfirmed scenarios past their pause point.
Valid actions per scenario:
release, rejectapprove, rejectconfirm, expireThe endpoint is concurrency-safe: concurrent advance calls for the same simulation_id are handled atomically — exactly one wins, the rest receive 409 Conflict.
Available in sandbox mode only.
The simulation_id returned by POST /sandbox/simulate/inbound
Simulation advanced successfully
The simulation that was advanced.
"sim_01HXYZ"
The state position before advancing (e.g., "compliance_hold").
"compliance_hold"
The state position after advancing (e.g., "release").
"release"
Number of new callbacks scheduled by this advance action.
1