Shopify Delivery Date Not Showing on Orders: Cart Attributes, Apps, and Email Fixes (2026)

Quick Fix with Thunder

Check Whether the Delivery Date Reaches the Cart

Before editing order notifications, prove whether Shopify receives the delivery date in the cart. Add a test product, choose the date, then open /cart.js in the same browser. Shopify's Ajax Cart API supports cart attributes and notes during a customer's session.

Delivery date debugging:
1. Add one product to cart.
2. Choose the delivery date in the cart or drawer.
3. Open /cart.js in the same browser.
4. Search for "attributes" and the delivery date label.
5. If the date is missing here, it will not appear reliably on the order.

If the date appears in /cart.js but not the order, inspect checkout path, delivery app settings, and order display. If the date is missing from /cart.js, fix the form name or JavaScript save first. This overlaps with cart attributes not showing on orders.

Save Delivery Date as a Cart Attribute

If one delivery date applies to the whole order, save it as a cart attribute. A normal cart form can submit the value with attributes[Delivery date]. A drawer needs to post the value to /cart/update.js before sending the customer to checkout.

{% form 'cart', cart %}
  <label for="DeliveryDate">Delivery date</label>
  <input
    id="DeliveryDate"
    type="date"
    name="attributes[Delivery date]"
    value="{{ cart.attributes['Delivery date'] | escape }}">

  <button type="submit" name="checkout">Check out</button>
{% endform %}

If each product can have a different delivery date, use line item properties instead. Mixing cart attributes and line item properties is a common reason staff say the date is missing when it is actually stored in a different place.

Fix Drawers That Redirect Before the Date Saves

Delivery-date widgets often live inside AJAX drawers. The field looks correct, but the checkout button redirects before the save request completes. The result is inconsistent: one test order includes the date, the next one does not.

async function saveDeliveryDateBeforeCheckout() {
  const deliveryDate = document.querySelector('[name="attributes[Delivery date]"]')?.value;

  await fetch('/cart/update.js', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
    body: JSON.stringify({ attributes: { 'Delivery date': deliveryDate || '' } }),
  });

  window.location.href = '/checkout';
}

document.querySelector('[data-checkout-button]')?.addEventListener('click', (event) => {
  event.preventDefault();
  saveDeliveryDateBeforeCheckout().catch(console.error);
});

Use one checkout handler. Disable duplicate app handlers. Show a loading state after the first click. If the button also requires two clicks, read Shopify checkout requires 2 clicks.

Show the Delivery Date in Order Emails

Sometimes the date is on the order, but staff or customers do not see it because the notification template does not output attributes. Check the Shopify order admin first. If the date appears under additional details, update the order confirmation or internal notification template.

{% for attribute in order.attributes %}
  {% if attribute.first == 'Delivery date' %}
    <p><strong>Delivery date:</strong> {{ attribute.last }}</p>
  {% endif %}
{% endfor %}

If you use a delivery-date app, check whether it saves the date as an order attribute, order note, line item property, metafield, tag, or app-only record. Then use that exact source in staff workflows. Related checks: order notes not showing, local pickup not showing, and shipping rates not showing.

Manual Fix vs Thunder Fix

For stores with several cart-data issues, compare Thunder pricing with professional Shopify speed optimization.

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