How To Fix CMD_MLTAS019 - Fatal error during derivation: invalid number of assigned objects

SAP Error Message - Details

• Message type: E = Error

• Message class: CMD_MLTAS - Messages for multiple assignment function

• Message number: 019

• Message text: Fatal error during derivation: invalid number of assigned objects

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMD_MLTAS019 - Fatal error during derivation: invalid number of assigned objects ?

  The SAP error message CMD_MLTAS019, which states "Fatal error during derivation: invalid number of assigned objects," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where object assignments and derivations are involved. This error indicates that there is an issue with the number of objects that have been assigned or derived in a particular planning scenario.
  Causes:
  
  Incorrect Configuration: The configuration of the planning area or the master data may not be set up correctly, leading to an invalid number of assigned objects.
  Data Inconsistencies: There may be inconsistencies in the master data or transaction data that prevent the system from correctly deriving the necessary objects.
  Missing Objects: Required objects (like materials, resources, or locations) may be missing or not properly assigned in the planning area.
  Custom Logic: If there are custom enhancements or user exits in place, they may be causing unexpected behavior during the derivation process.
  Version Issues: Sometimes, the error can arise due to version mismatches or issues with the data being processed.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for the planning area and ensure that all necessary objects are correctly assigned. This includes checking the settings for the master data and planning books.
  Validate Master Data: Ensure that all required master data is complete and consistent. Check for missing or incorrectly assigned materials, resources, or locations.
  Review Derivation Logic: If there are custom derivation rules or logic, review them to ensure they are functioning as intended and not causing the error.
  Run Consistency Checks: Use SAP's consistency check tools to identify and resolve any inconsistencies in the data.
  Check Logs: Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context on what might be causing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the software you are using, as there may be known issues or patches available.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/SDP94 for planning book maintenance or /SAPAPO/OM17 for checking master data.
  SAP Notes: Search for SAP Notes related to CMD_MLTAS019 for any specific patches or updates that may address this error.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the CMD_MLTAS019 error and implement a suitable solution.