WooCommerce Add Fee If Coupon Applied

Question

I'd like to be able to add a fixed $20 fee if a given coupon code (100% off) is applied to the cart. The fee should also not have taxes applied. I'm offering a try at home service for $20, so a certain coupon would discount the cart and all products by 100% but add a $20 fixed fee. Any help is much appreciated!

JC

For your information fee lines in Woocommerce are always added by default below shipping lines and there is no other way when adding a fee to Woocommerce. You can change that behavior only if you customize the related templates *(which is another question)*. — LoicTheAztec, Nov 12 '18 at 01:25
That would be great but the code your provided added $20 to the Shipping line not a Fee line. — jcooksey80, Nov 12 '18 at 01:25
Sorry but I am using [`WC_Cart` `add_fee()`](https://docs.woocommerce.com/wc-apidocs/class-WC_Cart.html#_add_fee) method, which adds a FEE and NOT a SHIPPING METHOD… There is no other ways or methods to add a fee. The display problem that you have is due to your theme, a customization that you have made or a third party plugin. But it's not due to my code. — LoicTheAztec, Nov 12 '18 at 01:28

LoicTheAztec · Answer 1 · 2018-11-12T01:52:27.560

1

The following code will apply a fee of $20 if a specific coupon code has been applied to cart:

add_action( 'woocommerce_cart_calculate_fees','conditional_custom_fee', 10, 1 );
function conditional_custom_fee( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // HERE set your targeted coupon code (100 % off)
    $coupon_code = 'thatsforfree';

    // Check if our targeted coupon is applied
    if( in_array( wc_format_coupon_code( $coupon_code ), $cart->get_applied_coupons() ) ){
        $title = __('Fee', 'woocommerce'); // The fee title
        $cost  = 20; // The fee amount

        // Adding the fee (not taxable)
        $cart->add_fee( $title, $cost, false );
    }
}

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

The display in cart and checkout pages (on Woocommerce storefront theme):

This code uses The Woocommerce FEE API using WC_Cart method add_fee() with the dedicated action hook woocommerce_cart_calculate_fees.

edited Nov 12 '18 at 01:52

answered Nov 11 '18 at 21:21

LoicTheAztec

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Thanks so much for the quick response! The code is adding a $20 fee, however, it is adding it on the Shipping line as a Flat Rate. Is there a way to make this show as a separate line with the fee title? Thanks! – jcooksey80 Nov 11 '18 at 22:45
So there is no way to create a new line? This will give customers the impression they are paying for shipping, when shipping is to be free. A bit confusing. Any workarounds for a new line? Thanks! – jcooksey80 Nov 11 '18 at 22:53
I would accept the answer, but this code did not result in what I wanted. It added the fee in the shipping line. – jcooksey80 Nov 12 '18 at 01:13
@loictheaztec is there a way to add a css script to your PHP? Your solution works perfectly for me, but I'd like to use CSS to hide the default shipping options when your code runs. Thanks – Mr N Dynamite Nov 02 '19 at 17:18

WooCommerce Add Fee If Coupon Applied

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