How To Fix PMMO_BASIS006 - Class &1 does not have any known subclasses

SAP Error Message - Details

• Message type: E = Error

• Message class: PMMO_BASIS - Messages for PMMO Basis Objects

• Message number: 006

• Message text: Class &1 does not have any known subclasses

What causes this issue?

Class &v1& does not have any known subclasses.

System Response

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

How to fix this error?

Create a subclass in class builder (SE24 transaction) that inherits from
the main class &v1&.
Note: Input help works only for global classes.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PMMO_BASIS006 - Class &1 does not have any known subclasses ?

  The SAP error message PMMO_BASIS006 indicates that the specified class (denoted as &1 in the error message) does not have any known subclasses. This typically occurs in the context of SAP's classification system, particularly when working with materials, equipment, or other objects that are expected to have subclasses defined under a certain class.
  Cause:
  
  Class Definition: The class you are trying to use does not have any subclasses defined. This could be due to an oversight during the class setup or because the class is intended to be a standalone class without subclasses.
  Incorrect Class Assignment: The class might have been incorrectly assigned to a material or object that requires subclasses for proper categorization.
  Data Inconsistency: There may be inconsistencies in the data or configuration that prevent the system from recognizing subclasses.
  
  Solution:
  
  
  Check Class Configuration:
  
  Go to the Class Management transaction (e.g., CL02) and check the configuration of the class in question.
  Ensure that the class is set up correctly and that subclasses are defined if they are needed.
  
  
  
  Define Subclasses:
  
  If the class is supposed to have subclasses, you can create them using the Class Management transaction (CL01).
  Make sure to assign the appropriate characteristics to the subclasses as needed.
  
  
  
  Review Object Assignment:
  
  Check the assignment of the class to the relevant materials or objects. Ensure that the correct class is being used and that it aligns with the expected structure.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to classification and subclassing to ensure that you are following the correct procedures.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is impacting business processes.
  
  
  
  Related Information:
  
  Classification System: SAP uses a classification system to categorize materials, equipment, and other objects. Each class can have multiple subclasses, which can inherit characteristics from the parent class.
  Transaction Codes:
  
  CL01: Create Class
  CL02: Change Class
  CL03: Display Class
  
  
  Characteristics: Each class and subclass can have characteristics that define specific attributes or properties relevant to the items being classified.
  
  By following these steps, you should be able to address the PMMO_BASIS006 error and ensure that your classification setup is functioning as intended.