Square Setup Guide

Step by step, how to take card payments through Square on your Zen Cart store with the Square Web Payments module. The module itself is a commercial product from its developer, sold separately. We can buy the license for your store and add it to your invoice, or send you the link if you'd rather buy it yourself.

What's Inside:

• What you need before you start, and which Zen Cart and PHP versions the module supports
• Creating your Square application and credentials, sandbox and production
• Getting and installing the module
• Every setting, what to enter, and why
• Testing in Square's sandbox
• Going live with a small real order
• Troubleshooting the problems people actually run into

Kept Current: providers change their dashboards and requirements from time to time. We check every guide regularly and update it when something changes, and the date at the top of the guide shows when we last checked. Updates are free, for good.

How You Read It: it's an online guide on this site, tied to your account. After checkout we email you the link; sign in with the account you ordered with, and you'll also find it in the Documentation box whenever you're signed in.

Prefer we do it? See Payment and Shipping Setup  |  Get every guide: All Setup Guides