Title: Limit addon
Last modified: September 24, 2018

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# Limit addon

 *  [kikaweb](https://wordpress.org/support/users/kikaweb/)
 * (@kikaweb)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/limit-addon/)
 * Hello,
    I’m using this plug-in for the first time, and I’ve just added a product
   Addon. This is my scenario: users can buy the product and decide the quantity.
   Anyway they can buy the addon only once. How can I limit the add-on fee to only
   one product? I tried to set “quantity” to 1 in the product meta, but with no 
   luck.

Viewing 1 replies (of 1 total)

 *  [RokasJ](https://wordpress.org/support/users/rokasjan/)
 * (@rokasjan)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/limit-addon/#post-10719102)
 * Hi,
 * Unfortunately this cannot be achieved with product addons module, however there
   are “Custom Checkout Fields” and “Checkout Fees” modules in Booster. Using both
   of them you can achieve that if some product is in cart, then new field (e.g.
   checkbox) is added to the checkout page and if that checkbox is selected – fee
   is added to the cart. So basically it’s what you need, but instead “addon” being
   on single product page, it’s displayed on checkout page.

Viewing 1 replies (of 1 total)

The topic ‘Limit addon’ is closed to new replies.

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## Tags

 * [product addon](https://wordpress.org/support/topic-tag/product-addon/)

 * 1 reply
 * 2 participants
 * Last reply from: [RokasJ](https://wordpress.org/support/users/rokasjan/)
 * Last activity: [7 years, 9 months ago](https://wordpress.org/support/topic/limit-addon/#post-10719102)
 * Status: not resolved