How To Fix WW079 - Reference material & does not exist.

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 079

• Message text: Reference material & does not exist.

What causes this issue?

The reference material you have entered does not exist.

System Response

INCLUDE ISR_STOP

How to fix this error?

Save the material group and maintain the reference material using the
function provided for the purpose on the initial screen of this
transaction. The material you create here is automatically assigned to
the material group.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW079 - Reference material & does not exist. ?

  The SAP error message WW079 ("Reference material & does not exist") typically occurs when you are trying to use a reference material in a transaction, but the system cannot find the specified material in the database. This can happen for several reasons, including:
  Causes:
  
  Material Not Created: The reference material has not been created in the system.
  Incorrect Material Number: The material number entered may be incorrect or misspelled.
  Material Status: The material may be inactive or blocked for use.
  Plant/Storage Location Issues: The material may not be available in the specified plant or storage location.
  Authorization Issues: The user may not have the necessary authorizations to view or use the material.
  
  Solutions:
  
  
  Check Material Existence:
  
  Use transaction code MM03 (Display Material) to check if the material exists in the system.
  Ensure that you are using the correct material number.
  
  
  
  Create Material:
  
  If the material does not exist, you can create it using transaction code MM01 (Create Material).
  
  
  
  Check Material Status:
  
  Verify the status of the material. If it is blocked or inactive, you may need to change its status using transaction code MM02 (Change Material).
  
  
  
  Verify Plant/Storage Location:
  
  Ensure that the material is assigned to the correct plant and storage location. You can check this in the material master data.
  
  
  
  Check Authorizations:
  
  Ensure that you have the necessary authorizations to access the material. If not, contact your SAP security administrator.
  
  
  
  Consult with IT Support:
  
  If you are still facing issues, it may be helpful to consult with your IT support team or SAP Basis team for further investigation.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  MMBE: Stock Overview
  MB52: List Warehouse Stocks on Hand
  
  
  
  Material Master Data: Understanding how material master data is structured in SAP can help in troubleshooting issues related to materials.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  
  By following these steps, you should be able to identify the cause of the WW079 error and take appropriate action to resolve it.