How To Fix WW218 - Please maintain hierarchy material &

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 218

• Message text: Please maintain hierarchy material &

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Press the button to Maintain materials.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW218 - Please maintain hierarchy material & ?

  The SAP error message WW218 ("Please maintain hierarchy material &") typically occurs in the context of SAP's Material Management (MM) or Production Planning (PP) modules. This error indicates that there is a missing or incomplete hierarchy for a material that is required for certain operations, such as planning or reporting.
  Cause:
  
  Missing Hierarchy Data: The material in question does not have a defined hierarchy in the system. This could be due to the material not being set up correctly or the hierarchy not being maintained.
  Incorrect Material Type: The material type may not support hierarchy structures, or the hierarchy may not be applicable for the specific material.
  Configuration Issues: There may be issues with the configuration settings in the system that prevent the hierarchy from being recognized or maintained.
  
  Solution:
  
  
  Maintain Hierarchy for the Material:
  
  Go to the relevant transaction (e.g., MM01 for creating materials or MM02 for changing materials).
  Enter the material number that is causing the error.
  Navigate to the appropriate views (e.g., Sales, Purchasing, or MRP) and ensure that the hierarchy is properly maintained.
  If applicable, check the "Hierarchy" tab and ensure that the necessary hierarchy levels are defined.
  
  
  
  Check Material Type:
  
  Verify that the material type is appropriate for the hierarchy you are trying to maintain. If not, consider changing the material type or creating a new material with the correct type.
  
  
  
  Review Configuration Settings:
  
  Consult with your SAP configuration team to ensure that the settings related to material hierarchy are correctly configured in the system.
  Check if there are any specific settings in the customizing (transaction SPRO) that need to be adjusted.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for more detailed information on maintaining material hierarchies and the specific requirements for your version of SAP.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or your internal IT team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, MM03, and SPRO for material management and configuration.
  User Roles: Ensure that you have the necessary permissions to maintain material data and hierarchy in the system.
  Training: If you are new to SAP or the specific module, consider undergoing training to better understand how material hierarchies work within the system.
  
  By following these steps, you should be able to resolve the WW218 error and maintain the necessary hierarchy for the material in question.