How To Fix I4478 - Reference object cannot be deleted due to maintained object list

SAP Error Message - Details

• Message type: E = Error

• Message class: I4 - WCM: Work Clearance Management

• Message number: 478

• Message text: Reference object cannot be deleted due to maintained object list

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message I4478 - Reference object cannot be deleted due to maintained object list ?

  The SAP error message I4478 ("Reference object cannot be deleted due to maintained object list") typically occurs when you attempt to delete a reference object (such as a material, equipment, or functional location) that is still being referenced by other objects in the system. This is a safeguard to prevent the accidental deletion of objects that are still in use.
  Cause:
  The error is triggered because:
  
  The reference object you are trying to delete is linked to other objects that are still active or maintained in the system.
  There are dependencies or relationships that prevent the deletion of the reference object.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Dependencies:
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the database tables related to the object you are trying to delete. Look for any entries that reference the object.
  You can also use transaction IH08 (for technical objects) or CS15 (for materials) to analyze where the object is being used.
  
  
  
  Remove References:
  
  Once you identify the dependent objects, you will need to either delete or modify those objects to remove the references to the object you want to delete.
  For example, if the object is a material, check for any BOMs (Bill of Materials), routings, or production orders that reference it.
  
  
  
  Check Object List:
  
  If the object is part of a maintained object list (like a maintenance plan or a task list), you will need to remove it from that list before attempting to delete it.
  
  
  
  Delete the Object:
  
  After ensuring that all references have been removed, you can attempt to delete the reference object again.
  
  
  
  Consult Documentation:
  
  If you are unsure about the dependencies or how to proceed, consult the SAP documentation or reach out to your SAP support team for guidance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, IH08, CS15, and others that can help you analyze object dependencies.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or updates that may pertain to your specific version of SAP.
  Testing in Development: If possible, test the deletion process in a development or test environment before applying changes in production to avoid unintended consequences.
  
  By following these steps, you should be able to resolve the I4478 error and successfully delete the reference object.