How To Fix IDOC_ADAPTER104 - IDoc adapter inbound: Sender port is initial

SAP Error Message - Details

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 104

• Message text: IDoc adapter inbound: Sender port is initial

What causes this issue?

IDoc adapter inbound processing: The sender port is initial.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

An IDoc was sent to IDoc adapter inbound processing whose sender port
was empty. This port is required to locate the meta data and to convert
the IDoc partner. Correct this in the sender system.

Procedure for System Administrators

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IDOC_ADAPTER104 - IDoc adapter inbound: Sender port is initial ?

  The SAP error message IDOC_ADAPTER104 indicates that there is an issue with the configuration of the IDoc adapter, specifically that the sender port is not defined or is set to an initial (empty) value. This error typically occurs when an inbound IDoc is being processed, and the system cannot determine the sender port from which the IDoc is coming.
  Cause:
  
  Missing Sender Port Configuration: The sender port is not configured in the IDoc adapter settings.
  Incorrect Mapping: The mapping between the IDoc type and the port is not correctly set up.
  IDoc Metadata Issues: The IDoc metadata may not be correctly defined or may be missing.
  Transport Layer Issues: There may be issues with the transport layer that prevent the system from recognizing the sender port.
  
  Solution:
  To resolve the IDOC_ADAPTER104 error, you can follow these steps:
  
  
  Check Sender Port Configuration:
  
  Go to the SAP system and navigate to the transaction code WE21 (IDoc Ports).
  Verify that the sender port is correctly defined and active.
  Ensure that the port is assigned to the correct logical system.
  
  
  
  Verify Logical System Configuration:
  
  Check the logical system configuration in transaction WE20 (Partner Profiles).
  Ensure that the partner profile for the sender is correctly set up and that the port is assigned to the correct partner.
  
  
  
  Review IDoc Type and Message Type:
  
  Ensure that the IDoc type and message type being sent match the configuration in the receiving system.
  Check if the IDoc type is correctly mapped to the sender port.
  
  
  
  Check IDoc Metadata:
  
  Ensure that the IDoc metadata is correctly defined in the system.
  If necessary, regenerate the IDoc metadata.
  
  
  
  Test IDoc Communication:
  
  Use transaction WE19 to test the IDoc communication by simulating the sending of an IDoc.
  This can help identify if the issue is with the IDoc itself or the configuration.
  
  
  
  Check for Transport Layer Issues:
  
  If the IDoc is being sent from an external system, ensure that the transport layer (e.g., RFC connection) is correctly configured and operational.
  
  
  
  Review Logs:
  
  Check the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Related Information:
  
  IDoc Basics: Understanding IDocs, their structure, and how they are processed in SAP can help in troubleshooting.
  SAP Notes: Check SAP Notes related to IDoc processing and the specific error message for any known issues or patches.
  Documentation: Refer to SAP documentation for IDoc configuration and troubleshooting for more detailed guidance.
  
  By following these steps, you should be able to identify and resolve the issue causing the IDOC_ADAPTER104 error.