In Vt02n transaction while doing shipment completion i need to check if the forwarding agent field is empty or not .
If it is so i need to raise a error message. After that the forwarding agent field should be opened for input.
In the include ZXV56U16 (in the exit EXIT_SAPLV56F_011) i wrote a logic for this field check and raised a error message.
When i tested it the error message was dipalyed but the field is not opeing for inout again.
Can anyone pls help me on resolving this issue.