Set min quantity for some product categories or product IDs in Woocommerce 3.3

Update 2 (It works too now for archive pages and on cart for product variations).

The following code will set a minimal quantity for specific product categories:

// On single product pagesadd_filter( 'woocommerce_quantity_input_args', 'min_qty_input_args', 20, 2 );function min_qty_input_args( $args, $product ) {    ## ---- Your settings ---- ##    $product_categories = array('Burberry', 'Daniel Wellington',        'Diesel', 'Emporio Armani', 'Marc Jacobs', 'Michael Kors');    $quantity = 2;    ## ---- The code: set minimun quantity for specific product categories ---- ##    $product_id = $product->is_type('variation') ? $product->get_parent_id() : $product->get_id();    if( has_term( $product_categories, 'product_cat', $product_id ) ){        $args['min_value'] = $quantity;    }    return $args;}// On archives pagesadd_filter( 'woocommerce_loop_add_to_cart_link', 'min_qty_loop_add_to_cart_button', 50, 2 );function min_qty_loop_add_to_cart_button( $button, $product  ) {    // Only for non variable products    if( $product->is_type( 'variable' ) ) return $button; // Exit    ## ---- Your settings ---- ##    $product_categories = array('Burberry', 'Daniel Wellington',        'Diesel', 'Emporio Armani', 'Marc Jacobs', 'Michael Kors');    $quantity = 2;    ## ---- The code: set minimun quantity for specific product categories ---- ##    if( has_term( $product_categories, 'product_cat', $product->get_id() ) ){        $class = implode( ' ', array_filter( array(            'button',            'product_type_' . $product->get_type(),            $product->is_purchasable() && $product->is_in_stock() ? 'add_to_cart_button' : '',            $product->supports( 'ajax_add_to_cart' ) ? 'ajax_add_to_cart' : '',        ) ) );        $button = sprintf( '<a rel="nofollow" href="%s" data-quantity="%s" data-product_id="%s" data-product_sku="%s" class="%s">%s</a>',            esc_url( $product->add_to_cart_url() ),            esc_attr( isset( $quantity ) ? $quantity : 1 ),            esc_attr( $product->get_id() ),            esc_attr( $product->get_sku() ),            esc_attr( isset( $class ) ? $class : 'button' ),            esc_html( $product->add_to_cart_text() )        );    }    return $button;}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

For product tags, you will have just to change 'product_cat' by 'product_tag' in the code.

ADDITION: For product IDS (array of IDs)

To make it work for product Ids instead use:

// On single product pagesadd_filter( 'woocommerce_quantity_input_args', 'min_qty_input_args', 20, 2 );function min_qty_input_args( $args, $product ) {    ## ---- Your settings ---- ##    $product_ids = array('23', '52', '75', '87', '90', '102');    $quantity = 2;    ## ---- The code: set minimun quantity for specific product Ids ---- ##    if( in_array( $product->get_id(), $product_ids ) || ( $product->is_type('variation') && in_array( $product->get_parent_id(), $product_ids ) ) ){        $args['min_value'] = $quantity;    }    return $args;}// On archives pagesadd_filter( 'woocommerce_loop_add_to_cart_link', 'min_qty_loop_add_to_cart_button', 50, 2 );function min_qty_loop_add_to_cart_button( $button, $product  ) {    // Only for non variable products    if( $product->is_type( 'variable' ) ) return $button; // Exit    ## ---- Your settings ---- ##    $product_ids = array('23', '52', '75', '87', '90', '102');    $quantity = 2;    ## ---- The code: set minimun quantity for specific product IDs ---- ##    if( in_array( $product->get_id(), $product_ids ) ){        $class = implode( ' ', array_filter( array(            'button',            'product_type_' . $product->get_type(),            $product->is_purchasable() && $product->is_in_stock() ? 'add_to_cart_button' : '',            $product->supports( 'ajax_add_to_cart' ) ? 'ajax_add_to_cart' : '',        ) ) );        $button = sprintf( '<a rel="nofollow" href="%s" data-quantity="%s" data-product_id="%s" data-product_sku="%s" class="%s">%s</a>',            esc_url( $product->add_to_cart_url() ),            esc_attr( isset( $quantity ) ? $quantity : 1 ),            esc_attr( $product->get_id() ),            esc_attr( $product->get_sku() ),            esc_attr( isset( $class ) ? $class : 'button' ),            esc_html( $product->add_to_cart_text() )        );    }    return $button;}

Code goes in function.php file of your active child theme (or active theme). Tested and works.