One of the best things about WooCommerce which makes it so widely adapted e-commerce platform is it’s customizability.
With this little peice of code we can limit the minumun purchasable quantity for all products in the site
<?php
/**
* Show error if quantity is less than 2.
*/
function pram_minimum_item_quantity_validation( $passed, $product_id, $quantity, $variation_id = 0, $variations = false ) {
$minimum = 2;
if ( $quantity < $minimum ) {
wc_add_notice( sprintf( 'Minumum purchasable quantity for this product is "%d"', $minimum ), 'error' );
return false;
}
}
add_action( 'woocommerce_add_to_cart_validation', 'pram_minimum_item_quantity_validation', 1, 5 );
If you want to add this restriction for only a certain product then you only need to make a slight modification:
<?php
/**
* Show error if quantity is less than 2 and only for a certain product.
*/
function pram_minimum_item_quantity_validation( $passed, $product_id, $quantity, $variation_id = 0, $variations = false ) {
$minimum = 2;
if ( 52 === $product_id && $quantity < $minimum ) {
wc_add_notice( sprintf( 'Minumum purchasable quantity for this product is "%d"', $minimum ), 'error' );
return false;
}
return $passed;
}
add_action( 'woocommerce_add_to_cart_validation', 'pram_minimum_item_quantity_validation', 1, 5 );Set maximum purchasable quantity
<?php
/**
* Show error if quantity is more than 2.
*/
function pram_minimum_item_quantity_validation( $passed, $product_id, $quantity, $variation_id = 0, $variations = false ) {
$maximum = 2;
if ( $quantity > $maximum ) {
wc_add_notice( sprintf( 'Maximum purchasable quantity for this product is "%d"', $maximum ), 'error' );
return false;
}
return $passed;
}
add_action( 'woocommerce_add_to_cart_validation', 'pram_minimum_item_quantity_validation', 1, 5 );