Real-time Payment Manager (RPM)
User Guide:
https://support.payeezy.com/hc/en-us/articles/203731249-Real-time-Payment-Manager-RPM-User-Guide
Making CVV Field Appear on POS Screen:
https://support.payeezy.com/hc/en-us/articles/203731309-Making-CVD-CVV2-field-appear-on-POS-Screen
Adding AVS/CVS Filters:
Recurring Payments:
https://support.payeezy.com/hc/en-us/articles/203731469-An-Introduction-to-Recurring
Hosted Checkout/Payment Pages
Integration Manual:
Generating the Payment Request Form Programmatically:
Web Service API
Reference Guide:
API HMAC Hash (v12 and up):
https://support.payeezy.com/entries/22069302-api-security-hmac-hash
General
Compatible Shopping Carts:
https://www.firstdata.com/en_us/customer-center/merchants/ecommerce-partner-directory.html
Set up a Demo Account:
https://support.payeezy.com/hc/en-us/articles/203730579-Payeezy-Gateway-Demo-Accounts
Test Credit Card Numbers:
https://support.payeezy.com/hc/en-us/articles/204504235-Using-test-credit-card-numbers
eCommerce Response Codes (ETG Codes):
PayPal Integration:
https://support.payeezy.com/hc/en-us/articles/203730629-PayPal-Integration