F4 help for custom table field - to be used when populating data thru SM30
I have a custom table with 5 fields - say A, B, C, D and E. While populating data to the table through SM30, I need to create a F4 help for the field C. A custom function module needs to be used.
I have created a module for the same in the event PROCESS ON VALUE-REQUEST of the function group of the table.
But the F4 for field C depends on the values put in fields A and B.
I am not able to get the values of fields A and B from within the module PROCESS ON VALUE-REQUEST.
Please help me to create the F4 help.