How To Fix MDG_BS_MAT_ACCESS004 - No default class type exists

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_BS_MAT_ACCESS - Message class for MDG Material Access Layer

• Message number: 004

• Message text: No default class type 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_BS_MAT_ACCESS004 - No default class type exists ?

  The SAP error message MDG_BS_MAT_ACCESS004 ("No default class type exists") typically occurs in the context of Master Data Governance (MDG) for Material Management when the system is unable to find a default class type for a material. This can happen during the creation or modification of material master data.
  
  Cause:
  
  Missing Class Type Configuration: The error usually indicates that there is no default class type defined for the material type you are trying to create or modify. Class types are used in SAP to categorize materials and manage their attributes.
  Incorrect Material Type Settings: The material type may not be properly configured to link to a class type.
  Custom Development Issues: If there are custom developments or enhancements in the MDG process, they might interfere with the standard behavior of class type assignment.
  
  
  Solution:
  
  
  Check Class Type Configuration:
  
  Go to the transaction code CL02 (Change Class) or CL01 (Create Class) to check if the class type exists.
  Ensure