In SAP EDI/IDoc processing, a port defines how IDocs are sent or received between systems,
Integration Scenarios
-
SAP to SAP
-
SAP to middleware (like Sterling, Boomi, Cleo, SAP PI/PO)
-
SAP to a file directory
Types of Ports in SAP:
|
Port Type |
Description |
|
tRFC (Transaction RFC) |
Used for real-time IDoc transmission to another SAP system |
|
File Port |
Writes IDocs to a file (e.g., for middleware like Cleo,
Seeburger, etc.) |
|
ABAP-PI |
Internal communication through ABAP proxy (used in SOA/web
services) |
|
XML HTTP |
Sends IDocs as XML over HTTP(S) |
|
Directory (EDI) |
Sends IDoc to file system (common for outbound interfaces) |
Where to Configure:
Use transaction WE21 to configure ports.
Why Port Is Important:
When SAP triggers an IDoc, it uses:
- Partner
profile (WE20)
- Output
type (e.g., BA00)
- Port
(defined in WE21)
If the port is misconfigured or missing, you'll get
errors like:
- Error
while writing IDoc to file (EA084)
- Port
does not exist
- No
authorization to write file
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