All new fields for customer master records can also be transferred to the R/3 system using program RFBIDE00.
Batch input can still be made with the old record definitions. Using the
end of record marker, the program recognizes what record structures do not
match the extended record structure and initializes the new fields with
NODATA.
The batch input log shows you what structures need to be maintained
afterwards. You should maintain them as soon as possible so that the new
functions or fields can be used.