Before using any OC2Export module such as OC2Sage, OC2Evri etc you will need to install the OC2Export Main Menu module. This module will place an OC2Export Admin Menu in the Admin area of your Opencart installation.

OC2Export uses the Opencart ‘Events’ framework.
VQMod and OCMod are NOT required.
No Opencart core files are replaced or modified.