How To Fix /SCWM/MQ_CONFIG007 - Instantiation of class &1 must be Public

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MQ_CONFIG -

• Message number: 007

• Message text: Instantiation of class &1 must be Public

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MQ_CONFIG007 - Instantiation of class &1 must be Public ?

  The SAP error message /SCWM/MQ_CONFIG007 Instantiation of class &1 must be Public typically occurs in the context of SAP Extended Warehouse Management (EWM) when there is an issue with the visibility of a class that is being instantiated. This error indicates that the class you are trying to instantiate is not declared as public, which is a requirement for certain operations in SAP.
  Cause:
  
  Class Visibility: The class you are trying to instantiate is defined with a visibility that does not allow it to be accessed from the context in which you are trying to use it. In ABAP, classes can be declared as public, protected, or private. If a class is not public, it cannot be instantiated outside of its own definition context.
  Incorrect Class Definition: The class might have been defined incorrectly, or it may have been intended to be public but was mistakenly defined with a more restrictive visibility.
  
  Solution:
  
  
  Change Class Visibility:
  
  Go to the ABAP Workbench (SE80 or SE24).
  Locate the class that is causing the error (indicated by &1 in the error message).
  Open the class definition and check the visibility settings.
  Change the visibility of the class to Public if it is currently set to Protected or Private.
  Save and activate the class.
  
  
  
  Check Instantiation Context:
  
  Ensure that the instantiation of the class is being done in a context that allows for public classes. If you are trying to instantiate a class from a different package, ensure that the class is indeed public.
  
  
  
  Review Related Code:
  
  Review the code where the instantiation is happening to ensure that there are no other issues that might be causing the error.
  
  
  
  Related Information:
  
  ABAP Class Visibility: Understanding the different visibility options in ABAP is crucial. Public classes can be accessed from anywhere, while protected and private classes have more restricted access.
  SAP Notes and Documentation: Check SAP Notes for any known issues or additional guidance related to this error message. The SAP Help Portal may also provide insights into class definitions and instantiation.
  Debugging: If the issue persists after making changes, consider using the ABAP debugger to trace the execution and identify where the instantiation is failing.
  
  By addressing the visibility of the class and ensuring it is public, you should be able to resolve the error message /SCWM/MQ_CONFIG007.