About Payment Modules
What payment processing options are available?
Payment
Taking Payments For Orders
How do I get paid?
Understanding payment collection for your orders
Authorize.net AIM Payment Module
Zen Cart Authorize.net AIM Payment Module
Authorize.net SIM Payment Module
Zen Cart Authorize.net SIM Payment Module (DEPRECATED)
Card Number Validation
How are credit cards validated?
Credit Card Authorize vs Capture
How do I authorize a Credit Card but not actually charge it until I ship the goods?
Manual Credit Card Collection - Potential Problems
Why you shouldn’t use manual credit card processing with online stores
My Payment Methods aren't showing up during checkout
Payment Method problems
PayPal - one account on multiple sites
Consolidating PayPal accounts
PayPal - Paying with Credit Card vs a PayPal Account
Customer questions regarding paypal
PayPal Commerce
PayPal Commerce, PayPal Pro, 3D Secure
PayPal Error Messages
Understanding the various PayPal errors
PayPal Express Checkout setup
The preferred way to use PayPal in Zen Cart
PayPal Standard - Potential Problems
Why you shouldn’t use PayPal Standard
PayPal Standard, Express and Pro - what's the difference?
Zen Cart PayPal Standard, Express and Pro - what’s the difference?
PayPal/IPN Troubleshooting
Resolving problems with PayPal
Square - Avoiding Token Expiry
Preventing “OAuth access token has expired”
Square Errors and Issues
Handling problems with Square WebPay
Square Payments Form Module
The original Zen Cart Square Module (DEPRECATED)
Square Web Payments API
How to collect payments with Square
Store Credit
How Can I Issue Store Credit instead of a Refund
Whoops timeouts after payment
Error when you return to your cart after offsite payment
Do you have a suggestion for a FAQ? Please post it to General Questions on the support forum.
Last modified August 29, 2020 by Scott C Wilson (8de0edc).