Basic Configuration in IDOC

Define a new internal RFC destination INTERNAL
Explore both the transactions WEDI and SALE and adjust the settings as necessary
Use transaction BALE to generate an arbitrary IDoc

You can access most of the transactions used in the example below in the menu

We will assume, that we want to send material master data from the current system
to a remote system. To simulate this scenario we do not need to have a second
system. With a little trick, we can set up the system to send an IDoc back to the
sending client.

We will set up the system to use an RFC call to itself. Therefore we need to define
an RFC remote destination, which points back to our own client. There is a virtual
RFC destination called NONE which always refers to the calling client.
RFC destinations are installed with the transaction SM59. Create a new R/3
destination of type "L" (Logical destination) with the name INTERNAL and the
destination NONE.

Note: Do not use RFC type internal. Although you could create them manually, they
are reserved for being automatically generated. However, there is the internal
connection "NONE" or "BACK" which would do the same job as the destination we
are creating now.

The next step is defining a data port, which is referenced by the IDoc sending
mechanism to send the IDoc through. Declaring the port is done by transaction
We will now declare an ALE connection from our client to the partner INTERNAL.
ALE uses IDocs to send data to a remote system. There is a convenient transaction
to send material master data as IDocs via the ALE.

The set up is done in transaction SALE. You first create a new ALE model, to avoid
interfering with eventual existing definitions. Then you simply add the IDoc
message MATMAS as a valid path from your client to INTERNAL.
In order to send the IDoc, you call the transaction BALE and choose the distribution
of material master data (BD10). Choose a material, enter INTERNAL as receiver
and go.

To see, which IDocs have been sent, you can use the transaction WE05. If you did
everything as described above, you will find the IDocs with an error status of 29,
meaning that there is no valid partner profile. This is true, because we have not
defined one yet.