How To Fix /SAPAPO/OM_TS401 - Invalid pattern chain definition

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_TS -

• Message number: 401

• Message text: Invalid pattern chain definition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_TS401 - Invalid pattern chain definition ?

  The SAP error message /SAPAPO/OM_TS401 Invalid pattern chain definition typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when dealing with time series data and pattern definitions in the context of demand planning or supply network planning.
  Cause:
  The error message indicates that there is an issue with the pattern chain definition in the system. This can happen due to several reasons, including:
  
  Incorrect Pattern Definition: The pattern chain may not be defined correctly, or it may reference patterns that do not exist or are not valid.
  Missing or Incomplete Data: Required data for the pattern chain may be missing or incomplete, leading to an invalid configuration.
  Configuration Issues: There may be issues with the configuration settings in the APO system that affect how pattern chains are defined or utilized.
  Versioning Issues: If there are multiple versions of the pattern chain, the system may be trying to access a version that is no longer valid or has been deleted.
  
  Solution:
  To resolve the /SAPAPO/OM_TS401 Invalid pattern chain definition error, you can take the following steps:
  
  
  Check Pattern Chain Definition:
  
  Go to the transaction code /SAPAPO/OM and navigate to the pattern chain definitions.
  Verify that the pattern chain is defined correctly and that all referenced patterns exist and are valid.
  
  
  
  Review Data:
  
  Ensure that all necessary data for the pattern chain is present and correctly configured.
  Check for any missing or incomplete entries in the relevant master data.
  
  
  
  Configuration Review:
  
  Review the configuration settings in the APO system related to pattern chains and time series data.
  Ensure that the settings align with the business requirements and that there are no discrepancies.
  
  
  
  Check for Version Conflicts:
  
  If there are multiple versions of the pattern chain, ensure that the correct version is being used and that it is active.
  If necessary, delete or deactivate any obsolete versions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on pattern chains and their configuration.
  
  
  
  Testing:
  
  After making changes, test the pattern chain to ensure that it works as expected and that the error does not reoccur.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who specializes in APO for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/OM for managing pattern chains and /SAPAPO/DP for demand planning.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide specific fixes or patches.
  Documentation: Review the SAP Help Portal for detailed documentation on pattern chains and their configuration in APO.
  
  By following these steps, you should be able to identify and resolve the cause of the /SAPAPO/OM_TS401 Invalid pattern chain definition error.