Woocommerce: How to Add extra fee for First Order

1 comment

1. You use the cart class’ add_fee() method to add a fee. There’s no built-in way to know how many orders a customer has made, so we can try to track that via a user meta field called _number_order.

   function so_27969258_add_cart_fee() {
       $orders = intval( get_user_meta( get_current_user_id(), '_number_orders', true ) );
       if( $orders < 1 ){
           WC()->cart->add_fee( __( 'First time fee', 'your-plugin'), 100 );
       }
   }
   add_action( 'woocommerce_before_calculate_totals', 'so_27969258_add_cart_fee' );
   

   If we don’t actually update the _number_orders key, then it will always be null/empty/zero and the user will always be charged the first time fee. So we can try to update that key when the user completes payment.

   function so_27969258_track_orders_per_customer(){
       $orders = intval( get_user_meta( get_current_user_id(), '_number_orders', true ) );
       $orders = $orders + 1;
       update_user_meta( get_current_user_id(), '_number_orders', $orders );
   }
   add_action( 'woocommerce_payment_complete', 'so_27969258_track_orders_per_customer' );
   

   This is totally untested, so use at your own risk. Also, you might want to look into changing the number of orders total in case of refunds/cancellations, etc, but this seems like the general gist.

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