The ability to customize Magento 2 makes it the CMS of choice for developers. Today, I'll share one such specially-made method to add a custom field below apply a discount code in Magento 2 cart page.
With this solution, you can utilize the cart page when a consumer is about to complete their purchase for a number of different purposes.
The customer is now practically certain to convert and is hence confident in your brand. Why not demand more of them?
For instance, if you are providing a discount code, you may encourage the user to click on a custom field underneath the discount code and invite them to review the benefits of the deal in greater detail or to sign up for a premium membership to receive additional savings.
Additionally, at this stage, you can include a unique link that guides visitors to your best-selling products. By doing this, you can raise the average order value and improve sales.
Additionally, if you allow product customization, you can include a unique button so that customers can begin customizing the product if they haven't already. Enhance the Magento 2 store's customer experience in this way.
Get more here: https://meetanshi.com/blog/add-custom-field-below-apply-discount-code-in-magento-2-cart-page/