Answer / rammohan

port acts as medium inbetween sendor and receiver.
port carries the idoc from sendor to receiver.
port creatin is we21 and provide the reciver name should
casensitive.

Answer / ranjeet singh

Let me correct Guys. Answers above are half correct, Just add one statement in your answer. Ports Act like a Bridge between to system to send and receive data through idoc.

Answer / kubera

Ports in IDoc Processing..which specifies the way in which
the IDocs are transferred to the EDI subsystem.

Port is defined using the tcode: we21 and will be specified
in the outbound options of the partner profile (we20).

Answer / nageswar

port number is used to communicate the sender and
receiver ,it is used to carry the data from sender to
receiver system,one receiver can have more port numbers,it
is the way of path.we can create a port number in we21 t-
code

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