How To Fix /CUM/ARCHIVE009 - Compatible unit &1 still used in instances, cannot set deletion indicator

/CUM/ARCHIVE009 - Overview

• Message type: E = Error

• Message class: /CUM/ARCHIVE -

• Message number: 009

• Message text: Compatible unit &1 still used in instances, cannot set deletion indicator

Self-Explanatory Message

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/CUM/ARCHIVE009 - Details

• The SAP error message /CUM/ARCHIVE009 indicates that a compatible unit (CU) is still being used in instances, which prevents the system from setting a deletion indicator for that CU. This typically occurs in the context of archiving or deleting data related to compatible units in SAP.
  
  Cause:
  
  Active Instances: The compatible unit is still referenced in active instances, such as production orders, maintenance orders, or other transactional data.
  Open Documents: There may be open documents or transactions that are linked to the compatible unit, which prevents it from being marked for deletion.
  Dependencies: Other objects or processes may depend on the compatible unit, making it impossible to delete or archive it.
  
  
  Solution:
  
  Identify Active Instances: Use transaction codes like SE16 or SE11 to check the database tables related to the compatible unit. Look for any active instances that reference the CU.
  Close or Delete References: If you find any active instances, you will need to either complete,