How To Fix /SCWM/CON400 - *** Messages RFC Modules for APO Access

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/CON -

• Message number: 400

• Message text: *** Messages RFC Modules for APO Access

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/CON400 - *** Messages RFC Modules for APO Access ?

  The SAP error message /SCWM/CON400 typically indicates an issue related to the communication between the SAP Extended Warehouse Management (EWM) system and the Advanced Planning and Optimization (APO) system. This error can occur when there are problems with the Remote Function Call (RFC) modules that facilitate the data exchange between these systems.
  Cause:
  
  RFC Connection Issues: The RFC connection between the EWM and APO systems may not be properly configured or may be down.
  Authorization Problems: The user credentials used for the RFC connection may not have the necessary authorizations to access the required functions in APO.
  Data Consistency Issues: There may be inconsistencies in the data being sent or received between the two systems.
  Configuration Errors: Incorrect settings in the EWM or APO configuration can lead to communication failures.
  Network Issues: Network problems can prevent successful communication between the systems.
  
  Solution:
  
  
  Check RFC Connection:
  
  Go to transaction SM59 in the SAP GUI and verify the RFC destination settings for the connection between EWM and APO.
  Test the connection to ensure it is active and functioning correctly.
  
  
  
  Review Authorizations:
  
  Ensure that the user ID used for the RFC connection has the necessary authorizations in both EWM and APO.
  Check the roles and profiles assigned to the user.
  
  
  
  Data Validation:
  
  Validate the data being sent from EWM to APO. Ensure that all required fields are populated and that the data is consistent.
  Check for any error logs or messages that may indicate specific data issues.
  
  
  
  Configuration Review:
  
  Review the configuration settings in both EWM and APO to ensure they are correctly set up for integration.
  Check for any recent changes that may have affected the configuration.
  
  
  
  Network Troubleshooting:
  
  If there are network issues, work with your IT team to diagnose and resolve any connectivity problems between the systems.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error message. SAP frequently releases updates and patches that can resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 (RFC Destinations), SLG1 (Application Log), and ST22 (Dump Analysis) for troubleshooting.
  SAP Documentation: Refer to the official SAP documentation for EWM and APO for detailed integration guidelines and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.