I am using Magento 2.2.6 Enterprise version and the site is live now.
I want to upgrade my store to the latest version of Magento which is 2.4.1. My store has many customizations in code and theme aspects. Some of the customizations are checkout, login, sales, product, pricing, and finance-related.
Except for the order placement, product and pricing, financial management, order processing, etc are handled by different systems like the ERP and the CRM. Now, I want to know will all, or any of these customizations be affected when I upgrade to Magento 2.4.1? Should I have to make any code changes according to Magento 2.4.1?
Please clarify my question.
Thanks in advance.