Hi Nitin,
OIF Inport:
I think the inport is created by you.
Is the NodeID in ParameterBinding of your OIF inport actually bound with the NodeID of your BO?
Please use a new data field for parameter.
If you dont mind , can I have a look at ViewAllHandler?
I am sorry but I cannot see your screenshots for these.
OWL OBN:
OutPort_OIF:
OBN to OIF:
Best Regards
Fred