NATs integration Details:

Please don't test your biller setup with GTBill's test account—it won't work correctly.

Basic Setup

1. If you have not done so already, register at GTBill and get an account.
2. Login to GTBill's Merchant area.
3. Click the Add/Modify link under the Merchant Setup tab
4. You only need to provide GTBill a single URL to handle all of your NATS sites. Enter the following in their Postback URL field: http://natsdomain/signup/process_gtbill.php (Replace natsdomain with your NATS domain.)

Member Management (optional)

Follow these instructions if to set-up Member Management in GTBill.

1. Click the Site Management link under the Merchant Setup tab
2. Click the Configure Site Link next to the desired Site
3. Enter into the Member Management URL field: http://natsdomain/signup/process_gtbill.php

Go to Page 2 > Setting up GTBill with NATs