How To Fix WW100 - Material & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 100

• Message text: Material & already exists

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW100 - Material & already exists ?

  The SAP error message WW100 ("Material & already exists") typically occurs when you attempt to create a new material master record in SAP, but the material number you are trying to use already exists in the system. This can happen for various reasons, such as:
  Causes:
  
  Duplicate Material Number: The material number you are trying to create is already assigned to another material in the system.
  Incorrect Number Range: The number range for material creation may not be set up correctly, leading to conflicts.
  Different Views: The material might exist in a different view or plant, which can cause confusion if you are not aware of it.
  Data Migration Issues: If data was migrated from another system, there might be duplicates that were not cleaned up.
  
  Solutions:
  
  
  Check Existing Materials: Use transaction codes like MM03 (Display Material) or MM02 (Change Material) to check if the material number already exists. You can search for the material using the material number or other attributes.
  
  
  Use a Different Material Number: If the material number is indeed taken, consider using a different number that is not already in use.
  
  
  Review Number Ranges: Check the number range settings for materials in the configuration (transaction code OMRM) to ensure that they are set up correctly and that there are no overlaps.
  
  
  Data Cleanup: If the error is due to data migration, you may need to clean up the existing data to remove duplicates or consolidate materials.
  
  
  Consult with SAP Basis or Functional Team: If you are unsure about the existing materials or the number range configuration, consult with your SAP Basis or functional team for assistance.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  OMRM: Number Range Maintenance for Material Master
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to material master creation.
  
  
  Documentation: Refer to SAP Help documentation for detailed information on material master data management.
  
  
  By following these steps, you should be able to resolve the WW100 error and successfully create or manage your material records in SAP.