I need refund transactions in BlueSnap, I'm using API and I have invoice numbers. How do I do that?
you didn't mention which type of API integration you're using, so here are your options:
If you are using Payment API (JSON/XML) - Use PUT with this URL format: https://ws.bluesnap.com/services/2/transactions/:transaction-id/refund
More details: https://developers.bluesnap.com/v8976-JSON/docs/refund https://developers.bluesnap.com/v8976-XML/docs/refund
If you are using Extended Payment API - see the explanation in this link.
Use PUT with this URL format: https://ws.bluesnap.com/services/2/orders/refund?invoiceId=38410844&reason=unsatisfied+customer
More details: https://developers.bluesnap.com/v8976-Extended/docs/refund-invoice