Is it feasible that POS user can not modify to any field for cash customer from point of sale.
Product version:
iVend 6.6
Problem statement:
Is it feasible that POS user can not modify to any field for cash customer from point of sale.
Proposed Solution/Workaround:

Yes Is it feasible that POS user can not modify to any field for cash customer from point of sale.

By using below steps pos user can not modify the cash customer information from point of sale.
Open iVend Enterprise MC -- > Administration -- Authorization

Security Role -- > Select the Role > Click on edit

Go to the option assign security rights

Click on POS Settings

Select NO against Update Cash Customer