API Integration Method

What is the Vault?

How do I Process a Credit/Refund/Void by Reference number as a Web Call?

What is XML Web Services Method?

How to Recognize Paya's SSL Certificate on my Browser or Connection

Reasons, why your Developer Connection log in, says: "Complete Registration"

Hierarchy Information Needed for Third-Party Software

Confirmation emails from Paya Exchange Virtual Terminal (PEVT)

Configuring Batch Close E-mail Notification in Paya Exchange

Description of Sage Exchange Desktop and Sage Exchange Virtual Desktop

Ways to Build a Shopping Cart or Payment Form using the Paya Gateway

GUIDs: Are they Case-Sensitive?

Definition of Error Code 403

Integration Methods that do not support Postback

Character Length of a GUID (Token)

GUID Expiration

ExpressPay Integration

Bankcard Gateway Decline Codes