Custom program - unknown warning messages after upgrade (4.6c to ECC 6.0)

Hi,

At work, we are currently upgrading from 4.6c to ECC 6.0

One of the custom (z) programs that was moved is displaying warning messages, and preventing the user from viewing a report.

The warnings appeared in ECC 6, but were never there in 4.6c. The warning message is "Restrict your selection". However, no matter how much criteria is entered, the warning message still appears.

The program code uses no messages or error handling, and the messages show up on the initial selection screen, after hitting execute.

However, just for testing, I copied the program to my own z program and it works fine.

Why is this happening with the original program? While creating a new program with copied code fixes the problem, I donu2019t understand why this would be happening in the 1st place.

Any ideas?