Pricing & profit
Tiered Pricing Calculator
Build quantity-break price tiers that never fall below your minimum margin. CSV export.
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Snippet
Sell a product only in multiples (quantity step) in WooCommerce
Make the quantity field go up in steps, e.g. 6, 12, 18, for products sold by the case.
add_filter( 'woocommerce_quantity_input_args', function ( $args, $product ) {
$step = 6; // Units per case.
$args['step'] = $step;
$args['min_value'] = $step;
$args['input_value'] = max( $step, (int) $args['input_value'] );
return $args;
}, 10, 2 );Where to put itPaste it into your child theme’s functions.php, or add it with a code-snippets plugin. Never edit the parent theme — updates overwrite it.