How To Fix /PF1/MSG_BC120 - Incorrect class (&1) for Business Partner Proxy

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_BC -

• Message number: 120

• Message text: Incorrect class (&1) for Business Partner Proxy

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_BC120 - Incorrect class (&1) for Business Partner Proxy ?

  The SAP error message /PF1/MSG_BC120 Incorrect class (&1) for Business Partner Proxy typically indicates that there is an issue with the configuration or mapping of the Business Partner (BP) in the system. This error often arises when the system is unable to find the correct class for the Business Partner Proxy that is being referenced.
  Cause:
  
  Incorrect Class Assignment: The Business Partner may be assigned to a class that does not match the expected class for the proxy.
  Configuration Issues: There may be issues in the configuration of the Business Partner settings in the SAP system.
  Missing or Incomplete Data: The Business Partner data may be incomplete or missing required fields.
  Proxy Configuration: The proxy settings for the Business Partner may not be correctly configured in the system.
  
  Solution:
  
  
  Check Business Partner Class:
  
  Verify the class assigned to the Business Partner in the system. Ensure that it matches the expected class for the proxy.
  You can do this by navigating to the Business Partner transaction (BP) and checking the details of the specific Business Partner.
  
  
  
  Review Configuration:
  
  Check the configuration settings for Business Partners in the SAP system. Ensure that all necessary settings are correctly configured.
  You may need to consult the customizing settings in transaction SPRO under the relevant sections for Business Partner.
  
  
  
  Validate Data:
  
  Ensure that all required fields for the Business Partner are filled out correctly. Missing or incorrect data can lead to this error.
  You can use transaction BP to review and edit the Business Partner data.
  
  
  
  Check Proxy Settings:
  
  Review the proxy settings related to the Business Partner. Ensure that the proxy is correctly set up and that it points to the right Business Partner class.
  You may need to check the relevant service definitions and configurations in transaction SOAMANAGER.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to Business Partner configuration and proxy settings for additional guidance.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the process to identify where the error is occurring. This may require technical expertise.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP (Business Partner), SPRO (Customizing), and SOAMANAGER (Web Service Management) for managing Business Partner settings.
  
  If the problem continues after following these steps, it may be beneficial to involve your SAP Basis or technical team for further investigation.