Mike Valera Thanks for the contribution! Really great. Just FYI, this only works with 1-step checkout.

Mike Valera thanks for sharing. I tested this and it seems the customer still has to click the 'Apply Coupn' button for it to work. Just checking I've not done something wrong. thanks again

Mike Valera you are the BOMB for sharing this. User still has to press "Apply" but better than nothing

I actually gave the code to ChatGPT & told it the problem and it solved it

Increased Timeout: I increased the setTimeout delay from 500ms to 1000ms. This gives the page a bit more time to fully load the elements before the script tries to click the button. Sometimes elements take a bit longer to render, especially on slower connections or with complex pages.

Added focus(): I added applyCouponButton.focus(); before clicking the button. This ensures the button is in focus before the click event, which can sometimes help with triggering actions that rely on the element being actively focused.

<script>

document.addEventListener("DOMContentLoaded", function () {

function getQueryParam(param) {

var urlParams = new URLSearchParams(window.location.search);

return urlParams.get(param);

}

var couponCode = getQueryParam("coupon_code");

if (couponCode) {

var couponInput = document.querySelector('input[name="coupon_code"]');

if (couponInput) {

couponInput.value = couponCode;

var inputEvent = new Event('input', { bubbles: true });

couponInput.dispatchEvent(inputEvent);

setTimeout(function () {

var applyCouponButton = document.querySelector('.apply-coupon-btn');

if (applyCouponButton) {

applyCouponButton.focus();

applyCouponButton.click();

}

}, 1000); // Increased timeout

}

}

});

</script>

Avery Smith where do you add this?

Avery Smith I couldn't find where to add this as well