this post problem is:
when a company is trying to give 20% discount to the 3 customers who have flown the most miles with the company.
Filling out in an Excel file how many miles have been traveled for every customer with the company; and then crossing over the customers information who has bought more tickets in the Excel file;
There the previously mentioned company gets the error that when generating the miles report in the system there appears duplicated IDs for different customers
when a company is trying to give 20% discount to the 3 customers who have flown the most miles with the company.
Filling out in an Excel file how many miles have been traveled for every customer with the company; and then crossing over the customers information who has bought more tickets in the Excel file;
There the previously mentioned company gets the error that when generating the miles report in the system there appears duplicated IDs for different customers