How To Fix /SAPAPO/MC01400 - Multiple classification: Class &1 was transferred

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 400

• Message text: Multiple classification: Class &1 was transferred

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 /SAPAPO/MC01400 - Multiple classification: Class &1 was transferred ?

  The SAP error message /SAPAPO/MC01400 indicates that there is an issue with multiple classifications in the SAP Advanced Planning and Optimization (APO) module. Specifically, the message states that a class (denoted as &1) was transferred multiple times, which can lead to inconsistencies in the classification of objects.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Duplicate Class Assignments: The object you are trying to classify has been assigned to the same class multiple times, which is not allowed.
  Data Inconsistency: There may be inconsistencies in the master data or classification data that lead to the system detecting multiple classifications.
  Configuration Issues: The configuration settings for classification in the APO system may not be set up correctly, leading to this error.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Class Assignments:
  
  Review the object that is causing the error and check its class assignments. Ensure that it is not assigned to the same class multiple times.
  If you find duplicate assignments, remove the unnecessary ones.
  
  
  
  Data Consistency Check:
  
  Perform a consistency check on the master data and classification data. This can often be done using transaction codes like CLOI (for class and object consistency) or similar tools in SAP.
  Correct any inconsistencies that are found.
  
  
  
  Review Configuration:
  
  Check the configuration settings for classification in the APO system. Ensure that the settings allow for the intended classification structure and that there are no restrictions that could lead to this error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to classification and the specific error message for additional guidance and troubleshooting steps.
  
  
  
  SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide specific notes or patches that address the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL02 (Change Class), CL03 (Display Class), and CL01 (Create Class) for managing classifications.
  SAP Notes: Search for SAP Notes related to the error message /SAPAPO/MC01400 in the SAP Support Portal for any known issues or fixes.
  APO Documentation: Review the APO documentation for best practices in managing classifications and master data.
  
  By following these steps, you should be able to identify and resolve the issue causing the /SAPAPO/MC01400 error message.