How To Fix MW477 - No variants exist for generic material

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 477

• Message text: No variants exist for generic material

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 MW477 - No variants exist for generic material ?

  The SAP error message MW477 ("No variants exist for generic material") typically occurs when you are trying to process a generic material that does not have any specific variants defined in the system. This can happen in various scenarios, such as when creating a sales order, purchase order, or during inventory management.
  Cause:
  
  Generic Material Definition: The material in question is defined as a generic material in the system, which means it does not have specific variants or characteristics assigned to it.
  Missing Variants: The specific variant of the generic material you are trying to use has not been created or is not available in the system.
  Incorrect Material Type: The material type may not be set up correctly to allow for variants.
  Data Inconsistency: There may be inconsistencies in the material master data or configuration settings.
  
  Solution:
  
  
  Check Material Master: Verify the material master record for the generic material. Ensure that the necessary variants are created and assigned to the generic material.
  
  Use transaction code MM03 to display the material master and check the "Basic Data" and "Classification" views.
  
  
  
  Create Variants: If no variants exist, you may need to create them. This can be done using transaction code MM01 to create a new material variant based on the generic material.
  
  
  Review Configuration: Check the configuration settings for the material type in the Customizing settings (transaction code SPRO). Ensure that the material type allows for variants and that the necessary settings are in place.
  
  
  Check User Input: Ensure that the user is entering the correct material number and that they are not mistakenly trying to use a generic material where a specific variant is required.
  
  
  Consult Documentation: Review any relevant documentation or guidelines for handling generic materials and variants in your organization.
  
  
  Related Information:
  
  Material Types: Understand the different material types in SAP and how they relate to generic materials and variants.
  Classification System: Familiarize yourself with the classification system in SAP, which allows for the categorization of materials based on characteristics.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. You can search for relevant notes in the SAP Support Portal.
  User Training: Ensure that users are trained on how to handle generic materials and the importance of variants in the material management process.
  
  By following these steps, you should be able to resolve the MW477 error and ensure that the necessary variants for the generic material are available for use in your SAP system.