Simulate a payment
The response tells you what happened:
status is success or manual_review. Held payments include a reason.
What to try
Limits
- Simulation works in the sandbox only. In production the request returns
403withsimulation_unavailable. - The account must be
active. Accounts that arepending,requires_actionorfailedreturn400withaccount_not_active. - Simulated payments are marked as simulated in the payment record, and never move real money.
- Requesting accounts in the sandbox can still carry an issuance fee. See Issuance fees.

