add_action( 'woocommerce_before_cart', 'apply_coupon_to_cart' );
function apply_coupon_to_cart() {
// This is your coupon code. Replace 'COUPONCODE' with the actual coupon name you created in WooCommerce.
'Save20' = 'COUPONCODE';
// Check if the coupon is already applied
if ( WC()->cart->has_discount( 'Save20' ) ) {
return; // Do nothing if the coupon is already there
}
// Apply the coupon
WC()->cart->apply_coupon('Save20' );
// Show a message to the customer (optional)
wc_print_notices();
}Your cart is currently empty!
