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Product quantity can be bound to different policies. The policy defines how the module behaves and how it manipulates the quantity of the product.

When a user enters the quantity, the ordered quantity can specify a number of items (pieces, packs, etc.) in a shopping cart. When the user presses the "Add to Cart" button, the module adds a row to the order. When the user adds more items of the same product, the module combines all specified quantities in the same row. It is a regular PrestaShop behavior.

The ordered quantity can specify a number of whole units (but not items), for example, meters. When the user enters the quantity of 45 meters for the rope, the shopping card will contain one product (rope) with the specified length of 45 meters and not 45 items of the rope as it would happen in the standard PrestaShop installation. While using whole units, every time when the user presses the "Add to Cart" button, the module adds new row with the specified quantity to the shopping cart. Note: you can override this behavior by choosing aggregate quantities option in "quantity mode".

The quantity can also specify the fractional units (quantity in decimal values), like kilogram or meter. This is the mandatory behavior for the grocery or fabrics shops. While using fractional units, every time when the user presses the "Add to Cart" button, the module adds new row with the specified quantity to the shopping cart. Note: you can override this behavior by choosing aggregate quantities option in "quantity mode".

This example uses 0.5 kg as a product default quantity.

The default quantity is an initial quantity displayed on a product page. The module also uses the default quantity when you add product to the card from the pages that have "Add to cart" button but do not offer the quantity field, like home page.

Inline explanation appears in the ordering block on a product page. It is usually a special message explaining the trading policy, but can be any text or valid HTML and can include images.

You can create dynamic explanation strings by using macros. When you use macros, the template engine calculates and substitute quantity values in place of macros in the explanation string. Read more about macros in the documentation.

You can define any number of different explanation messages.

PrestaShop Product Properties Extension module allows you easily create sophisticated shop with features that are not available in the standard PrestaShop installation. It is not just simply one more PrestaShop module. It is an integrated PrestaShop solution.

The Product Properties Extension is a mandatory engine and required for all PS&More solutions to work. Other PS&More modules are plugins that extend the Product Properties Extension functionality and add more features. You need the plugins only if you need these additional features.

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