How To Fix CL074 - Unit cannot be changed: the class is in use in other objects

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 074

• Message text: Unit cannot be changed: the class is in use in other objects

What causes this issue?

The unit can no longer be changed because the class is used as a
<DS:GLOS.class_item>class item</> in BOMs or task lists of
<DS:GLOS.configurable_material>configurable materials</>.

System Response

The system checks whether the class is used in configurable
objects.

How to fix this error?

Where-used list for BOMs

<DS:TRAN.CSC5>Proceed</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL074 - Unit cannot be changed: the class is in use in other objects ?

  The SAP error message CL074 ("Unit cannot be changed: the class is in use in other objects") typically occurs when you attempt to change a unit of measure (UoM) in a class that is currently being referenced or used by other objects in the system. This is a common issue in SAP when dealing with master data, especially in the context of materials, production, or inventory management.
  Cause:
  
  Active References: The class you are trying to modify is actively referenced in other objects, such as materials, documents, or transactions.
  Dependencies: There are dependencies or links to the class that prevent changes to its attributes, including the unit of measure.
  Data Integrity: SAP enforces data integrity rules to ensure that changes do not lead to inconsistencies in the system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Dependencies:
  
  Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check where the class is being used.
  Look for any materials, documents, or other objects that reference the class.
  
  
  
  Remove References:
  
  If possible, remove or change the references to the class in the objects that are using it. This may involve changing the UoM in the related materials or documents.
  
  
  
  Change Class Attributes:
  
  Once all references are removed, you should be able to change the unit of measure in the class without encountering the error.
  
  
  
  Check for Custom Code:
  
  If there are custom developments or enhancements that reference the class, ensure that these are also updated accordingly.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific guidelines related to your version and configuration.
  
  
  
  Use Transaction Codes:
  
  You can use transaction codes like CL02 (Change Class) to attempt to make the changes after ensuring that there are no active references.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Data Consistency: Always ensure that changes made to master data do not violate data consistency rules in SAP.
  Testing: After making changes, conduct thorough testing to ensure that the changes do not adversely affect other processes or data in the system.
  
  If you continue to face issues, it may be beneficial to engage with your SAP Basis or functional team for further assistance.