This simple extension adds a JAN column to the order invoice on OpenCart. That is, in invoice in the table with the products the value from the JAN field is deduced individually for each products.
The JAN field is often misused to record additional product parameters, in which case the JAN column header can be replaced in the modification.
If you are printing invoices before ordering and you need to add a JAN to the form - install this extension.
Module installation instructions:
Upload the module in the admin panel in the "Extensions" : "Install".
Go to the "Modifications" section and update the cache.
Go to the "Dashboard" section and update the template cache.
On November 20, 2025, a new major release of PHP was published - version 8.5. PHP 8.5 introduces useful improvements, but requires a careful approach when integrating into existing OpenCart projects.
Let’s look at OpenCart optimization methods that don’t require purchasing additional modules or paying for services. The main stages of OpenCart speed optimization.
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