Doubt

Hi All

Iam using Customize RFC.I given export parameter, but it has no values for Import parameter. This SY-SUBRC = 4.but I don’t know why it has no Import parameter; it may be NODATA, COMM (No communication between two system) and SYS (system failure).what is SY-SUBRC if RFC fails due to NODATA, COMM and SYS?

How can I find NODATA etc with sy-subrc?

I capture exception as follows.

EXCEPTIONS

NODATA = 1

COMM = 2

SYS = 3

OTHERS = 4.

Pls help me, To be reward all helpful answers.

Regards.

JNJ