How To Fix DFS_FE_COMMON440 - The rotation key &1 for rotation name &2 is not a unique key.

SAP Error Message - Details

• Message type: E = Error

• Message class: DFS_FE_COMMON - Message Class for DFS Force Element

• Message number: 440

• Message text: The rotation key &1 for rotation name &2 is not a unique key.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DFS_FE_COMMON440 - The rotation key &1 for rotation name &2 is not a unique key. ?

  The SAP error message DFS_FE_COMMON440 indicates that there is an issue with the uniqueness of the rotation key for a specific rotation name in the system. This error typically arises in the context of managing rotation keys in SAP, which are used in various applications, including production planning and material management.
  Cause:
  The error occurs when the system detects that the rotation key you are trying to use is not unique for the specified rotation name. This can happen due to several reasons:
  
  Duplicate Entries: There may be multiple entries in the database for the same rotation key and rotation name combination.
  Data Migration Issues: If data was migrated from another system or if there were manual entries, duplicates may have been inadvertently created.
  Configuration Errors: Incorrect configuration settings in the system may lead to the generation of non-unique keys.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE16 or SE11 to access the relevant database tables (e.g., the table that stores rotation keys) and check for duplicate entries for the specified rotation key and rotation name.
  If duplicates are found, you will need to determine which entry is valid and remove or correct the duplicates.
  
  
  
  Correct Data:
  
  If you find that there are indeed duplicates, you can either delete the unnecessary entries or modify them to ensure that each rotation key is unique for the given rotation name.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to rotation keys in your SAP system. Ensure that the settings are correctly defined to prevent the creation of duplicate keys.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to rotation keys and the specific module you are working with. There may be specific guidelines or best practices to follow.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue on your own, consider reaching out to SAP support for assistance. They may provide insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and others that may help you analyze the data.
  SAP Notes: Search for SAP Notes related to DFS_FE_COMMON440 for any specific fixes or recommendations provided by SAP.
  Documentation: Review the SAP Help Portal for detailed information on managing rotation keys and related configurations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.