Hi All, I have one rdf in that 2 groups are there. first group giving some ar records. Then we have a data link between two groups with column customer_trx_id. second group giving line details like description, quantity , rate and total value. If total value is in negative value, then report giving the following error. REP-1401: '': Fatal PL/SQL error occurred. REP-0069: Internal error REP-57054: In-process job terminated:Terminated with error: REP-1401: '': Fatal PL/SQL error occurred. So what may be the issue? Note that below points: There is one summary col in second group which source as total_value column. Also in first group one more summary col which source as second group summary column. I gave abs(total_value) for testing, then report is completed normal.