How To Fix COM_LINK_PARTNER001 - Missing parameter &1 when calling &2

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_LINK_PARTNER - relationship product to businesspartner

• Message number: 001

• Message text: Missing parameter &1 when calling &2

What causes this issue?

One or more parameters are missing when a new program unit is called up
(function module, method, sub-program).

System Response

The program is terminated.

How to fix this error?

It might be necessary to change the ABAP coding. Contact your system
administrator.

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_PARTNER001 - Missing parameter &1 when calling &2 ?

  The SAP error message COM_LINK_PARTNER001 with the description "Missing parameter &1 when calling &2" typically indicates that a required parameter is not being passed to a function module or method in the SAP system. This error often occurs in the context of communication between different components or systems, such as when using the SAP Communication Management (COM) framework.
  Cause:
  
  Missing Parameter: The most direct cause of this error is that a required parameter (denoted by &1) is not being provided when calling a specific function or method (denoted by &2).
  Configuration Issues: There may be issues with the configuration of the communication settings or the partner profiles.
  Custom Development: If there is custom code involved, it may not be correctly passing all required parameters.
  Data Issues: The data being processed may not contain all the necessary information, leading to missing parameters.
  
  Solution:
  
  Check Function Module/Method Signature: Review the documentation or the code for the function module or method being called to identify the required parameters. Ensure that all mandatory parameters are being passed correctly.
  Debugging: Use the SAP debugger to trace the execution of the code and identify where the missing parameter is supposed to be set. This can help pinpoint the exact location in the code where the issue arises.
  Review Configuration: If the error is related to communication settings, check the configuration of the relevant communication settings, such as partner profiles, RFC destinations, or other related settings.
  Custom Code Review: If the error arises from custom development, review the custom code to ensure that all necessary parameters are being populated and passed correctly.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific function module or method to understand its parameters and usage.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Transaction Codes: Use transaction codes like SE37 (Function Module), SE80 (Object Navigator), or SE11 (Data Dictionary) to investigate the function module or method in question.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.