Integration of a website selling translation services into a payment gateway Adyen (adyen.com)
Clients are first invoiced (not a part of this project). Then a client should introduce his invoice number and the payment sum into a form (it is done). Then it should take off for the payment gateway (Adyen) from there.
Integration manuals here: https://support.adyen.com/links/downloads
It’s NOT an API, nor hosted integration. All connections go to the Adyen server.
