Create a coupon programatically in WooCommerce

We will need to add this code to our child theme’s functions.php file or via a plugin that allows custom functions to be added. We always have to remember, we don’t have to add custom code directly to our parent theme’s functions.php file as this will be wiped entirely when we update the theme.

/**
 * Create a coupon programatically
 */
$coupon_code = 'UNIQUECODE'; // Code
$amount = '10'; // Amount
$discount_type = 'fixed_cart'; // Type: fixed_cart, percent, fixed_product, percent_product
     
$coupon = array(
 'post_title' => $coupon_code,
 'post_content' => '',
 'post_status' => 'publish',
 'post_author' => 1,
 'post_type'  => 'shop_coupon'
);
     
$new_coupon_id = wp_insert_post( $coupon );
     
// Add meta
update_post_meta( $new_coupon_id, 'discount_type', $discount_type );
update_post_meta( $new_coupon_id, 'coupon_amount', $amount );
update_post_meta( $new_coupon_id, 'individual_use', 'no' );
update_post_meta( $new_coupon_id, 'product_ids', '' );
update_post_meta( $new_coupon_id, 'exclude_product_ids', '' );
update_post_meta( $new_coupon_id, 'usage_limit', '' );
update_post_meta( $new_coupon_id, 'expiry_date', '' );
update_post_meta( $new_coupon_id, 'apply_before_tax', 'yes' );
update_post_meta( $new_coupon_id, 'free_shipping', 'no' );