The Shop app has its own set of technical requirements in addition to those of Perch itself.

The Shop app is ideally suited to use with Perch Runway, and that’s what we’d recommend for any store with more than a handful or products. Runway includes automated off-site backup functionality which is strongly recommended - you wouldn’t want a server failure to result in the loss of trading history and customer data. For added a few light sales to a smaller site, the app will also work with Perch.

Although PHP 5.4 is the technical lower limit for compatibility, this version of PHP has been end-of-lifed and no longer receives security updates. This is obviously a concern when building an ecommerce site. We strongly recommend you use an actively maintained version of PHP, such as 5.5 or above. Switching to PHP 7 would offer your site large performance improvements.