How To Fix C1153 - Class &(&) not found

C1153 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 153

• Message text: Class &(&) not found

What causes this issue?

The source system contains an allocation to class &v1&, class type
&v2&. However, class &v1& has not been created in the target system, so
this allocation cannot be maintained.

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 class &v1& with the same attributes as the class in the source
system. Import the allocation data again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1153 - Class &(&) not found ?

  The SAP error message C1153, which states "Class &(&) not found," typically occurs when the system is unable to locate a specified class in the ABAP environment. This can happen for several reasons, including:
  Causes:
  
  Class Not Created: The class you are trying to use has not been created or activated in the system.
  Incorrect Class Name: There may be a typo or incorrect naming in the class reference.
  Transport Issues: If the class was recently transported from another system, it may not have been imported correctly.
  Authorization Issues: The user may not have the necessary authorizations to access the class.
  Namespace Issues: The class might be in a different namespace that is not accessible in the current context.
  
  Solutions:
  
  Check Class Existence: Use transaction SE24 (Class Builder) to verify if the class exists. If it does not, you may need to create it.
  Correct Class Name: Double-check the spelling and case of the class name in your code.