In this documentation, we'll learn how to edit the message that appears when a user removes a coupon on a Checkout page.
Here's what we're going to edit:

Install and activate the Loco Translate plugin on WordPress.
Loco Translate provides in-browser editing to translate WordPress files.
Follow along:
Step 1: Go to Loco from your WooCommerce dashboard
Click on 'Plugins' and select 'WooCommerce'.

Step 2: Search for the coupon removed message and edit it

Edit the message as per your requirements.
Here's the final output:

This is how you can edit the message that appears when a user removes a coupon on a Checkout page.