FORMULA PAYMENTS API

API for merchant integration with Formula Payments.

⚠️ Financial Security & Critical Error Handling

To prevent double payouts and financial discrepancies, follow this strict rule:

An order is considered "rejected" or "not processed" ONLY if:

1. accepted is false
2. AND failure_reason is NOT an empty string.

If you receive an HTTP 500 error, a network timeout, or a response where accepted: false but the failure_reason is empty, the order's state is UNDEFINED.

DO NOT attempt to fulfill the payment through another provider or "retry" with a new external_order_id in this state. Doing so may result in double debits. You must verify the actual status by contact technical support.