I would like to know, if I do an upgrade from my Apple Developer Program account to the Apple Developer Enterprise Program, my current apps published will be affect in some aspect or not. What impact do we have in this apps already existent in Apple store?
Apple developer enterprise program is not used to distribute apps via the normal App Store. Its more for internal app distribution within your own company.
Hello,
You can't "upgrade" from Apple Developer Program to Apple Developer Enterprise Program at this time. If you are planning to change your individual account to a company account, we suggest you to review the information from the support page on "Can I switch my membership from an individual to an organization?"