This module has an retrieve your last session and auto apply any coupons you may have had the last time you were logged into the website also as an added benefit it allows you to set coupons via the browser like so
| App | Version |
|---|---|
| PHP | 7.3.x, 7.4.x |
| MySQL | 5.7 |
composer require vincentle89/module-imageineonline-autocoupon
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy