How To Fix /ACCGO/MCK_MAINT686 - CBOM determination failed using matrix

SAP Error Message - Details

• Message type: E = Error

• Message class: /ACCGO/MCK_MAINT -

• Message number: 686

• Message text: CBOM determination failed using matrix

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ACCGO/MCK_MAINT686 - CBOM determination failed using matrix ?

  The SAP error message /ACCGO/MCK_MAINT686 CBOM determination failed using matrix typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with the configuration of configurable materials and the use of characteristic-based object models (CBOM).
  Cause:
  
  
  Configuration Issues: The error often arises when there is a misconfiguration in the characteristic matrix or the configuration profile of the material. This can include missing characteristics, incorrect dependencies, or issues with the configuration settings.
  
  
  Data Inconsistencies: If the data in the system is inconsistent, such as missing or incorrect entries in the master data (like material master, BOM, etc.), it can lead to this error.
  
  
  Matrix Setup: The matrix used for determining the CBOM might not be set up correctly, or the characteristics used in the matrix may not match those defined in the material configuration.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the required data or perform the operation.
  
  
  Solution:
  
  
  Check Configuration Profile: Review the configuration profile of the material to ensure that all necessary characteristics and dependencies are correctly defined.
  
  
  Validate Matrix Setup: Ensure that the characteristic matrix is correctly set up. Check that all characteristics used in the matrix are defined and that their values are correctly assigned.
  
  
  Data Consistency Check: Perform a consistency check on the master data related to the material. Ensure that all required BOMs, routing, and material master data are correctly maintained.
  
  
  Authorization Check: Verify that the user has the necessary authorizations to perform the operation. If not, work with your SAP security team to obtain the required access.
  
  
  Debugging: If the issue persists, consider using transaction codes like SE80 or SE37 to debug the function module or program that is generating the error. This can provide more insight into what is causing the failure.
  
  
  SAP Notes: Check for any relevant SAP Notes or patches that may address this specific error. SAP frequently releases updates that can resolve known issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) to manage BOMs effectively.
  Documentation: Review SAP documentation related to configurable materials and CBOMs for best practices and guidelines.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with your SAP support team or reach out to SAP directly for further assistance.