How To Fix DDLS_HIER020 - View stack contains an hierarchy. No further hierarchy definition allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS_HIER - Used for DDL Hierarchies

• Message number: 020

• Message text: View stack contains an hierarchy. No further hierarchy definition 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS_HIER020 - View stack contains an hierarchy. No further hierarchy definition allowed ?

  The SAP error message DDLS_HIER020 indicates that there is an issue with the definition of a hierarchy in a data dictionary object, specifically when dealing with views that contain hierarchies. This error typically arises when you attempt to define a hierarchy in a view that already contains a hierarchy definition.
  Cause:
  The error occurs due to the following reasons:
  
  Hierarchy Conflict: The view you are trying to create or modify already contains a hierarchy definition. In SAP, a view can only have one hierarchy defined at a time.
  Incorrect View Definition: You may be trying to add a new hierarchy to a view that is not designed to support multiple hierarchies.
  Data Dictionary Constraints: The data dictionary enforces rules that prevent the creation of multiple hierarchies in a single view.
  
  Solution:
  To resolve the DDLS_HIER020 error, you can take the following steps:
  
  
  Check Existing Hierarchies: Review the view definition to see if there is already a hierarchy defined. You can do this by checking the view's properties in the Data Dictionary (SE11).
  
  
  Modify the View: If you need to add a new hierarchy, consider the following options:
  
  Remove the Existing Hierarchy: If the existing hierarchy is not needed, you can remove it and then define the new hierarchy.
  Create a New View: If you need to keep the existing hierarchy, consider creating a new view that includes the new hierarchy definition instead of modifying the existing one.
  
  
  
  Consult Documentation: Review SAP documentation or help resources for guidelines on how to properly define hierarchies in views.
  
  
  Use Transaction Codes: Utilize transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to analyze and modify the view definitions.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or solutions related to this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and how they resolved them.
  Hierarchy Management: Familiarize yourself with the concepts of hierarchy management in SAP, including how to create, modify, and delete hierarchies in the data dictionary.
  
  By following these steps, you should be able to resolve the DDLS_HIER020 error and successfully manage hierarchies in your SAP views.