Prestashop Module Override 'link' May 2026

Use overrides sparingly, document them religiously, and always ask: “Could I achieve this with a hook or a custom module instead?”

In Back Office → Advanced Parameters → Performance → click "Clear cache". Important Naming Convention The override class name must be unique. The standard convention is: prestashop module override

When used correctly, overrides will save you from module vendor lock-in and let you bend PrestaShop to your exact business needs – without losing the ability to update. Have a tricky module override scenario? Share it in the comments below! Have a tricky module override scenario

This is where come into play. What Is a Module Override? An override is a safe, core-respecting way to replace or extend the logic of an existing module without modifying its original source files. What Is a Module Override

Delete /var/cache/dev/class_index.php (and /var/cache/prod/ in production).

/override/modules/customshipping/classes/CustomShippingCalculator.php Your override must extend the original class and use the same namespace.

return $originalCost + $extraFee;