How to rollback OpenCart 3 to 2.3?

Question

opencart

There is a site that uses OpenCart 3, it needs to be rolled back to 2.3.
Also, I will need to do the opposite - from an older version of OpenCart to switch to a new one.
I myself have never worked with this CRM.
Please tell me where I can find documentation that would help me.
Thank you.

Answer 1

1. Why? Did someone tell you that the troika is raw?
2. It all depends on the version, and the data that needs to be transferred,
as well as the functionality