Probleam in RFC lookup

Hi ,

I am using RFC lookup in message mapping, i passing 2 input parameter and get 4 output parameter.

I am not getting output in RFC lookup, but i test the RFC (se37) ,i got the output.

Example:

RFC input1: GHA

input2:02

PI RFC lookup output: null

Test(se37) RFc output1:qadb output2:gha10 output3:sipdb output4 1521

Please help me to solve the issue.