How To Fix MW520 - Select generic material and all variants for changing site group

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 520

• Message text: Select generic material and all variants for changing site group

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 MW520 - Select generic material and all variants for changing site group ?

  The SAP error message MW520, which states "Select generic material and all variants for changing site group," typically occurs when you are trying to change the site group for a material that is not a generic material or when the selection criteria do not meet the requirements for the operation you are attempting.
  Cause:
  
  Material Type: The material you are trying to change is not defined as a generic material. In SAP, generic materials are used to represent a group of similar materials, and they have specific characteristics that allow for variant management.
  Selection Criteria: The system expects you to select a generic material and all its variants, but you may have selected a specific material instead.
  Configuration Issues: There may be configuration settings in the material master that prevent the change of the site group.
  
  Solution:
  
  Select the Correct Material: Ensure that you are selecting a generic material (often identified by a specific material type) and that you include all variants associated with that generic material.
  Check Material Master Data: Review the material master data to confirm that the material is set up correctly as a generic material. You can do this by navigating to the material master record and checking the relevant fields.
  Use the Correct Transaction: Make sure you are using the appropriate transaction code for changing the site group. For example, if you are using transaction MM02 (Change Material), ensure that you are in the correct view and have selected the right material type.
  Consult Documentation: Refer to SAP documentation or your organization's SAP guidelines for managing generic materials and site groups to ensure compliance with internal processes.
  Contact SAP Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  Related Information:
  
  Material Master: The material master is a central repository of information about materials in SAP. It contains data related to purchasing, sales, inventory management, and more.
  Generic Materials: These are materials that represent a group of similar items, allowing for easier management of variants and characteristics.
  Site Group: A site group in SAP is used to categorize materials based on their location or site of production, which can affect inventory management and logistics.
  
  By following these steps and understanding the context of the error, you should be able to resolve the MW520 error effectively.