Hi @Nagah.khaled 
“When loading an external voucher file the system checks the records horizontally line
by line and in the code maximum length is allowed. It is difficult to say exactly what the number of
are records are allowed, as it depends on the information you specify on a particular line. If the
information reached the maximum length the system will give an error message to indicate that. And
from the ACCRUL and GENLED side (when the voucher is created and updated) there is no upper limit as such.”
IFS RnD replied as above for a similar query.
hope this info helps.