How To Fix /CUM/MSG523 - CUI & (CU &) within a virtual multilevel CUI is not allowed

/CUM/MSG523 - Overview

• Message type: E = Error

• Message class: /CUM/MSG -

• Message number: 523

• Message text: CUI & (CU &) within a virtual multilevel CUI is not allowed

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.

/CUM/MSG523 - Details

• The SAP error message /CUM/MSG523 CUI & (CU &) within a virtual multilevel CUI is not allowed typically occurs in the context of Configuration User Interfaces (CUI) in SAP, particularly when dealing with the configuration of user interfaces in a multi-level structure.
  
  Cause:
  This error arises when there is an attempt to create or use a configuration user interface (CUI) that is not allowed within the defined structure of a virtual multilevel CUI. Specifically, it indicates that the system has detected an inconsistency or an invalid configuration where a certain CUI is being referenced in a way that violates the rules of the virtual multilevel structure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check CUI Configuration: Review the configuration of the CUIs involved. Ensure that the CUI you are trying to use is correctly defined and adheres to the rules of the virtual multilevel structure.
  
  
  Validate Hierarchy: Ensure that the hierarchy of