How to Set Up AVS for Your Merchants’ TPNs
iPOSpays allows ISOs to configure Address Verification Service (AVS) settings for their merchants’ TPNs. AVS helps verify the billing address provided during a card transaction against the address on file with the card issuer, helping identify potential mismatches. This document explains how to configure AVS settings for your merchants’ TPNs in the iPOSpays portal.
Feature Compatibility
- Supported Platforms:
- Payment Terminals (POS)
- CloudPOS
- iPOSgo!
Access the AVS Settings
- Log in to the iPOSpays portal using your ISO credentials.
- Go to S.T.E.A.M → Edit Parameters.
- Using the search box, locate and select the required merchant TPN.
- Click Edit Parameter.

- Go to the Transaction tab.
- Under the AVS section, configure the required setting.
Configure the AVS Settings
The AVS section provides the following options:
- Zip Code
Enables AVS verification using the customer’s billing ZIP Code.
- Street #
Enables AVS verification using the customer’s billing street number.
- Both Zip & Street
Enables AVS verification using both the customer’s billing ZIP Code and street number.
- None
Disables AVS verification for the TPN.

Select the appropriate AVS option based on the merchant’s requirements.
Only one AVS option can be selected at a time.
Save the AVS Settings
After configuring the required AVS setting:
- Click Save to apply the changes to the selected TPN.
- Click Save As Template to save the configured parameters as a template for future use.

- Perform a parameter update if the merchant has a payment terminal or iPOSgo! app for the updated AVS settings to take effect.