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Simulate completion
Complete a pending sandbox withdrawal without broadcasting a transaction and verify payout webhooks end to end.
API key: Payout · Environment: Sandbox only
Marks an eligible sandbox withdrawal as completed without signing or broadcasting an on-chain transaction. The method has no request body.
The withdrawal must belong to the authenticated merchant, exist in Sandbox, and be in a state accepted by the withdrawal state machine. Invalid state returns a conflict instead of forcing a transition.
Response (200 OK)
Returns the updated withdrawal and emits the same withdrawal.completed webhook used by real payouts. See Get Withdrawal for the response fields.
Errors
A Payment (pk_) key is rejected with 403 payout_key_required. See Error Codes for the full catalogue. The type URI in every error response deep-links to the matching row.