Thanks that totally set me on the right track! The problem I’m running into is that the gateway that I’m trying to implement does its authentication on the client side, using javascript. The only way I can figure this working involves me having to reload the page after authentication is received. Is there a way that I can send back the booking ID to events manager once I receive my approved or declined message? It looks like handle_payment_return() can do this, but what URL can I call to trigger this function?
Thanks for your help