How To Fix CH148 - You cannot delete, because the class is used in a BOM

SAP Error Message - Details

• Message type: E = Error

• Message class: CH - CAD/PP integration messages

• Message number: 148

• Message text: You cannot delete, because the class is used in a BOM

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CH148 - You cannot delete, because the class is used in a BOM ?

  The SAP error message CH148 indicates that you are trying to delete a class that is currently being used in a Bill of Materials (BOM). This is a common issue in SAP when dealing with classification and BOM management, as classes are often linked to materials and their components.
  Cause:
  The error occurs because the class you are attempting to delete is still referenced in one or more BOMs. SAP enforces this restriction to maintain data integrity, as deleting a class that is in use could lead to inconsistencies in the BOMs that rely on that class.
  Solution:
  To resolve this error, you need to follow these steps:
  
  
  Identify the BOMs Using the Class:
  
  Use transaction code CS03 (Display BOM) to check which BOMs are using the class. You can search for BOMs that reference the class in question.
  Alternatively, you can use transaction code CS15 (BOMs for Material) to find all BOMs that include materials classified under the specific class.
  
  
  
  Remove the Class from BOMs:
  
  Once you have identified the BOMs that are using the class, you will need to either:
  
  Remove the class from the BOMs if it is no longer needed.
  Change the classification of the materials in the BOM to a different class if applicable.
  
  
  
  
  
  Delete the Class:
  
  After ensuring that the class is no longer referenced in any BOMs, you can proceed to delete the class using transaction code CL02 (Change Class) and then selecting the delete option.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CL02: Change Class
  CS03: Display BOM
  CS15: BOMs for Material
  CS12: Display BOM Level
  CS11: Display BOM for Material
  
  
  
  Data Integrity: Always ensure that you maintain data integrity when making changes to classifications and BOMs. It is advisable to perform these actions in a test environment before applying them in production.
  
  
  Documentation: Refer to SAP Help documentation for more detailed information on class management and BOM handling.
  
  
  Authorization: Ensure you have the necessary authorizations to make changes to classes and BOMs in your SAP system.
  
  
  By following these steps, you should be able to resolve the CH148 error and successfully delete the class once it is no longer in use.