How to update and show the order summary when customers make changes during checkout?

I am using a custom checkout form and I would like updates to the order summary to happen as soon as a user adds or removes a product or coupon.

Scenario: The checkout page will contain additional products users can select from and a coupon code option. When the user selects more products or applies a valid coupon code, the order summary should be immediately updated with the latest changes.

1 Comment

Yes, it is possible to show the updated order summary in real time.

Here's how:

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