How the F4311.LOCN field gets updated by 'F4311 Edit Line' through batch R4311Z1I

Hello,

We use inbound custom batch which reads the text file and populates the Z tables F4301Z1 and F4311Z1. Then the JDE std batch R4311Z1I is launched to use the data from these Z tables and insert in F4301 and F4311 to generate the PO.

When the record gets inserted in F4311Z1, the location field F4311Z1. LOCN is "BLANK" as it was blank in Input Text file. But after execution of batch R4311Z1I, the record inserted in Table F4311 with LOCN value and not Blank. This record is inserted by std Business Function- 'F4311 Edit Line'