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@munts
Created August 26, 2020 19:37
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Remove 'Free Shipping' option if user applies coupon code to WooCommerce cart. Ie. if using coupon, do not provide free shipping.
add_filter( 'woocommerce_shipping_packages', function( $packages ) {
$applied_coupons = WC()->session->get( 'applied_coupons', array() );
if ( ! empty( $applied_coupons ) ) {
if ( in_array('promocode1', $applied_coupons) ||
in_array('promocode2', $applied_coupons)
) {
$free_shipping_id = 'woodiscountfree';
unset($packages[0]['rates'][$free_shipping_id]);
}
}
return $packages;
} );
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munts commented Aug 26, 2020

This is assuming you have some logic somewhere that says something like if Cart total is more than XX, then offer free shipping. However, if they customer uses a coupon code that gets them say 20% off, then remove the free shipping option. Ie. Free Shipping is available when paying msrp.

In my snippet above, $free_shipping_id = 'woodiscountfree'

'woodiscountfree' is set using the WooDiscount plugin by FlyCart where we have a rule that Free Shipping is available if Cart is greater than $250.

This value can be found by inspecting element using dev tools.

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