How To Implement Minimum and Maximum Quantity Rules for Specific Products in WooCommerce?

If you own an online store, you may have an ‘N’ number of reasons to limit the product quantities. One instance is that, if you are running a promotional sale, you can set limits to certain products that are part of a promotion to ensure that customers don’t buy too low or too many of these products.
The code snippet will set a minimum quantity limit of 2 and a maximum quantity limit of 5 for certain products defined in the code with their specific product IDs.

function ts_woocommerce_quantity_input_min_callback( $min, $product ) {
    // Array of product IDs for which to set the minimum quantity
    $product_ids = array( 100, 470, 457 ); // Update with your desired product IDs
    
    // Check if the current product ID is in the array
    if ( in_array( $product->get_id(), $product_ids ) ) {
        $min = 2; // Set the minimum quantity to 2 for the specified products
    }

    return $min;
}
add_filter( 'woocommerce_quantity_input_min', 'ts_woocommerce_quantity_input_min_callback', 10, 2 );

/*
* Changing the maximum quantity to 5 for specific WooCommerce products
*/

function ts_woocommerce_quantity_input_max_callback( $max, $product ) {
    // Array of product IDs for which to set the maximum quantity
    $product_ids = array( 100, 470, 457 ); // Update with your desired product IDs
    
    // Check if the current product ID is in the array
    if ( in_array( $product->get_id(), $product_ids ) ) {
        $max = 5; // Set the maximum quantity to 5 for the specified products
    }

    return $max;
}
add_filter( 'woocommerce_quantity_input_max', 'ts_woocommerce_quantity_input_max_callback', 10, 2 );

Output

When customers select products with the product IDs defined in the code (100, 470, and 457), these specific products will only be allowed to be selected within a specified quantity range of 2 to 5. This means that customers can select a minimum of 2 of these products and a maximum of 5. Any attempt to select a quantity below 2 or above 5 for these products will not be permitted.

Similarly, you can set quantity step increments and restrict the quantity field to selected numbers in WooCommerce.