How To Fix APC_MESSAGE004 - Class &1 in application &2 is inactive

APC_MESSAGE004 - Overview

• Message type: E = Error

• Message class: APC_MESSAGE - Message class for ABAP Channels (ATC Check only)

• Message number: 004

• Message text: Class &1 in application &2 is inactive

What causes this issue?

Class <(>&<)>1 in application <(>&<)>2 is inactive.

System Response

Class <(>&<)>1 in application <(>&<)>2 is inactive.

How to fix this error?

Resolve the problem in class builder (transaction SE24) for the used
class name.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message APC_MESSAGE004 - Class &1 in application &2 is inactive ?

  The SAP error message APC_MESSAGE004 indicates that a specific class in a particular application is inactive. This error typically arises in the context of the Application Performance Optimization (APO) or similar modules where certain classes or components need to be active for the application to function correctly.
  
  Cause:
  
  Inactive Class: The class specified in the error message is not activated in the system. This could be due to a configuration issue or an oversight during system setup.
  Transport Issues: If the class was recently transported from another system, it may not have been activated properly.
  Authorization Issues: The user may not have the necessary authorizations to activate the class or to access the application.
  System Configuration: The application may not be configured correctly, leading to the class being marked as inactive.
  
  
  Solution:
  
  
  Activate the Class:
  
  Go to the relevant transaction (e.g., SE80 for Object Navigator or SE11 for Data Dictionary).
  Locate the class specified in the error message.
  Activate the