How To Fix WC027 - Partner no. &, message cat. &: no FM name maintained in port defin.

SAP Error Message - Details

• Message type: E = Error

• Message class: WC - POS interface - outbound and Tickets & Additionals

• Message number: 027

• Message text: Partner no. &, message cat. &: no FM name maintained in port defin.

What causes this issue?

Port &V3& has been defined in outbound parameters for message category
&V2& for partner number &V1& and partner type KU. No name of a function
module that determines the file name to be written
has been maintained in the port definition.

System Response

Download of this message category cannot be properly carried out.

How to fix this error?

<DS:TRAN.WE21>Maintain the function module names in the port
definitions</> for &V3&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WC027 - Partner no. &, message cat. &: no FM name maintained in port defin. ?

  The SAP error message WC027 indicates that there is an issue with the partner number and the message category in the context of a port definition. Specifically, it suggests that there is no function module (FM) name maintained for the specified partner number in the port definition.
  Cause:
  
  Missing Function Module: The primary cause of this error is that the function module that is supposed to handle the communication for the specified partner number is not defined in the port settings.
  Incorrect Partner Profile: The partner profile may not be correctly configured, leading to the system not being able to find the necessary function module.
  Configuration Issues: There may be issues in the configuration of the EDI/IDoc settings, particularly in the transaction codes related to partner profiles and port definitions.
  
  Solution:
  
  
  Check Port Definition:
  
  Go to transaction code WE21 (Port Definition).
  Locate the port that corresponds to the partner number in question.
  Ensure that a valid function module is assigned to the port. If it is missing, you will need to maintain it.
  
  
  
  Maintain Function Module:
  
  If the function module is not defined, you can create or assign an appropriate function module that handles the processing for the partner.
  You can use transaction code SE37 to create or modify function modules.
  
  
  
  Review Partner Profile:
  
  Go to transaction code WE20 (Partner Profiles).
  Check the partner profile for the partner number in question.
  Ensure that the correct port is assigned and that all necessary settings are configured properly.
  
  
  
  Testing:
  
  After making the necessary changes, test the communication to ensure that the error is resolved.
  You can use transaction codes like WE19 (Test tool for IDocs) to simulate the sending of IDocs and verify that the function module is being called correctly.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE21: Port Definition
  WE20: Partner Profiles
  SE37: Function Module Maintenance
  WE19: Test Tool for IDocs
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on configuring EDI/IDoc settings and troubleshooting common errors.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message or provide additional guidance.
  
  
  By following these steps, you should be able to resolve the WC027 error and ensure that the necessary function module is properly maintained in the port definition for the specified partner number.