Product version:
iVend Retail 6.6 update 6 Patch 7825
Problem statement:
Optical transaction Tab not showing in iVend management console.
Symptoms:

Optical Transaction menu is not available in iVend management console
Proposed Solution/Workaround:

Resolution steps are below
1:- Login in the management console.
2:- Go to:- Administration >> Employee.
3:- Select employee open in edit mode and check the check box [Is tray status allowed]

4:- After checking the check box restart management console so that optical transaction becomes visible.