In O2C IBY payments process PSON like 'ONT% for multiple shipment case

Hi,

I have a scenario in O2C process , during Order Book, with 2 lines. Its a Multi shipment scenario.

In R12.1.3:

1) During Line1 amount capture (Receipt + Remittance + Submit Offline Transction), in Receipt PSON number is generated like 'ONT%'

2) During Line2 amount capture ,  in Receipt PSON number is generated like 'AR%'

Where as,

In R12.2.4:

1) During Line1 amount capture (Receipt + Remittance + Submit Offline Transction), in Receipt PSON number is generated like 'ONT%'

2) During Line2 amount capture ,  in Receipt PSON number is generated like 'ONT%'

Basically for all order line amount capture cases PSON generated like 'ONT%'