Steps to register an existing card for sending to Account Updater. Access this topic at https://docs.nexiopay.com/docs/tagging-an-existing-card-for-regi...

Steps for tagging a card that is registered with Account Updater for removal from the service. Access this topic at https://docs.nexiopay.com/docs/taggi...

Overview of test cards for sandbox environment testing. Access this topic at https://docs.nexiopay.com/docs/test-cards

Frequently asked questions for sandbox testing. Access this topic at https://docs.nexiopay.com/docs/testing

Table of codes to use for testing the Address Verification Service (AVS) in fraud prevention. Access this topic at https://docs.nexiopay.com/docs/testin...

Information about how to test for various conditions with Kount. Access this topic at https://docs.nexiopay.com/docs/testing-kount-verification

Information about how to test security code verification. Access this topic at https://docs.nexiopay.com/docs/testing-security-code-verification

Overview of transaction types for alternative payment methods: sale, authorize only, void, capture, refund. Access this topic at https://docs.nexiopay.c...

Overview of the routing feature for routing transactions based on items in the transaction, monthly gross of authorized transactions (also known as transact...

Overview of the Address Verification Service (AVS) response when doing fraud prevention. Access this topic at https://docs.nexiopay.com/docs/understandi...