How To Fix 06688 - Material group hierarchy & does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: 06 -

• Message number: 688

• Message text: Material group hierarchy & does not exist

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 06688 - Material group hierarchy & does not exist ?

  The SAP error message "06688 Material group hierarchy & does not exist" typically indicates that the system is unable to find a specified material group hierarchy in the database. This can occur in various scenarios, such as when creating or modifying materials, or when trying to access reports or transactions that rely on material group hierarchies.
  Cause:
  
  Missing Hierarchy: The specified material group hierarchy has not been created in the system.
  Incorrect Configuration: The hierarchy might have been incorrectly configured or deleted.
  Authorization Issues: The user may not have the necessary authorizations to access the material group hierarchy.
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in related tables.
  
  Solution:
  
  
  Check Hierarchy Existence:
  
  Go to the transaction code OMH1 (or similar, depending on your SAP version) to check if the material group hierarchy exists.
  If it does not exist, you will need to create it.
  
  
  
  Create Material Group Hierarchy:
  
  If the hierarchy is missing, you can create it using transaction code OMH1.
  Follow the prompts to define the hierarchy structure and save your changes.
  
  
  
  Verify Configuration:
  
  Ensure that the material group hierarchy is correctly configured and that all necessary nodes are defined.
  Check for any dependencies or settings that might affect the hierarchy.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access and modify material group hierarchies.
  You may need to consult with your SAP security team to verify and adjust user roles.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the material master data to ensure there are no discrepancies.
  Use transaction codes like MM02 to check the material master records for any issues.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for more detailed instructions on managing material group hierarchies.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OMH1: Create Material Group Hierarchy
  OMH2: Change Material Group Hierarchy
  OMH3: Display Material Group Hierarchy
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to material group hierarchies.
  Support: If the issue persists, consider reaching out to SAP support or your internal IT team for further assistance.
  
  By following these steps, you should be able to resolve the error message and ensure that the material group hierarchy is correctly set up in your SAP system.