How To Fix COM_LINK_PARTNER004 - Internal error in &1

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_LINK_PARTNER - relationship product to businesspartner

• Message number: 004

• Message text: Internal error in &1

What causes this issue?

An internal error has occurred in the program unit (function module,
method, sub-program) &V1&. This is described below:
The program needs a value for a variable, but the relevant field has not
been filled.
A function module or a method returns an exception or other data that
was not intended.
You can identify the error using the following data:
&V2&
&V3&
&V4&

System Response

The program is terminated

How to fix this error?

Identify the program unit and - if possible - the reason for the error.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message COM_LINK_PARTNER004 - Internal error in &1 ?

  The SAP error message COM_LINK_PARTNER004 indicates an internal error related to the communication link between different components or systems in SAP. This error typically arises in scenarios involving the integration of different SAP modules or when there are issues with the configuration of communication partners.
  Causes:
  
  Configuration Issues: Incorrect settings in the communication configuration, such as missing or incorrect partner profiles.
  Network Problems: Issues with the network that prevent proper communication between systems.
  Authorization Problems: Insufficient authorizations for the user or system trying to perform the operation.
  System Bugs: Internal bugs or inconsistencies in the SAP system that may lead to unexpected behavior.
  Data Inconsistencies: Issues with master data or transactional data that may cause the system to fail during processing.
  
  Solutions:
  
  
  Check Configuration:
  
  Verify the configuration of the communication partners in transaction WE20 (Partner Profiles).
  Ensure that the necessary settings for the relevant communication method (e.g., IDoc, RFC) are correctly configured.
  
  
  
  Review Logs:
  
  Check the application logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause.
  Look for any related error messages that may give additional context.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues affecting the communication between systems.
  Test the connectivity using tools like ping or telnet to check if the systems can reach each other.
  
  
  
  User Authorizations:
  
  Verify that the user or system has the necessary authorizations to perform the operation.
  Check roles and profiles assigned to the user in transaction PFCG.
  
  
  
  Data Consistency:
  
  Check for any inconsistencies in the data being processed. This may involve validating master data or transactional data.
  Use transaction SE11 to check the relevant database tables for any anomalies.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to this error.
  Apply any recommended patches or updates if applicable.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs and steps to reproduce the issue.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  WE20: Partner Profiles
  SLG1: Application Log
  PFCG: Role Maintenance
  SE11: Data Dictionary
  
  
  SAP Notes: Always check the SAP Support Portal for the latest notes related to your specific version of SAP and the error message.
  
  By following these steps, you should be able to diagnose and resolve the COM_LINK_PARTNER004 error in your SAP system.