Enhancement F050S002 function module EXIT_SAPLF050_004
I need to add data to one existing field in E1FISEG using exit EXIT_SAPLF050_004 for incoming FI idoc.
It seems data comes as EDIDD-SDATA (1000 char) string. To add my own data to one of the fields,I need to first read SDATA , but I am not sure what is format of SDATA. Is it concatenation of all fields in the segment? How is blank data recognized?