06691 - & not allowed as material group hierarchy

SAP Error Message - Details

• Message type: E = Error

• Message class: 06 -

• Message number: 691

• Message text: & not allowed as material group hierarchy

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 06691 - & not allowed as material group hierarchy ?

  The SAP error message 06691, which states "Not allowed as material group hierarchy," typically occurs when there is an issue with the material group hierarchy configuration in the SAP system. This error can arise in various scenarios, such as when trying to assign a material to a material group that is not allowed or when there are inconsistencies in the hierarchy setup.
  Causes:
  
  Incorrect Material Group Assignment: The material you are trying to assign may not be allowed under the specified material group hierarchy.
  Hierarchy Configuration Issues: The material group hierarchy may not be properly configured in the system, leading to restrictions on certain materials.
  Authorization Issues: The user may not have the necessary permissions to assign materials to certain groups.
  Data Inconsistencies: There may be inconsistencies in the master data related to material groups.
  
  Solutions:
  
  
  Check Material Group Assignment:
  
  Verify that the material you are trying to assign is compatible with the material group hierarchy. Ensure that the material group is correctly defined and that the material is allowed under that group.
  
  
  
  Review Material Group Hierarchy:
  
  Go to the configuration settings for material groups (Transaction Code: OMS4) and check the hierarchy setup. Ensure that the hierarchy is correctly defined and that the material groups are properly linked.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to perform the action. Check the user roles and permissions related to material group assignments.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the material master data to identify any discrepancies. You can use Transaction Code: MM02 to review and edit material master data.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for specific details on material group hierarchies and any restrictions that may apply.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Material Group: A classification of materials that share similar characteristics. Material groups are used for reporting and analysis purposes.
  Hierarchy: A structured arrangement of material groups that allows for better organization and management of materials.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and OMS4 (Maintain Material Group Hierarchy) for managing material data.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.