How To Fix CGPL_BW_INTERFACE001 - Hierarchy node &1 must be opened

SAP Error Message - Details

• Message type: E = Error

• Message class: CGPL_BW_INTERFACE - BW Interface

• Message number: 001

• Message text: Hierarchy node &1 must be opened

What causes this issue?

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

System Response

How to fix this error?

Open the superior project and save it again.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CGPL_BW_INTERFACE001 - Hierarchy node &1 must be opened ?

  The SAP error message CGPL_BW_INTERFACE001 with the description "Hierarchy node &1 must be opened" typically occurs in the context of working with hierarchies in SAP BW (Business Warehouse) or when dealing with certain data models that involve hierarchical structures.
  Cause:
  This error usually indicates that the hierarchy node specified (represented by &1) is not currently opened or accessible in the context where the operation is being performed. This can happen due to several reasons:
  
  The hierarchy node is not activated or is in a state that does not allow it to be opened.
  The hierarchy structure may not be properly defined or may have missing components.
  There may be authorization issues preventing access to the hierarchy node.
  The hierarchy node may be part of a larger structure that needs to be expanded or opened before it can be accessed.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Open the Hierarchy Node: 
  
  Navigate to the hierarchy in the relevant transaction (e.g., in the SAP BW modeling tools) and manually open the specified node. Ensure that the node is accessible and properly defined.
  
  
  
  Check Hierarchy Activation:
  
  Ensure that the hierarchy is activated. If it is not, activate it in the relevant hierarchy maintenance transaction.
  
  
  
  Review Hierarchy Structure:
  
  Check the hierarchy structure for any inconsistencies or missing nodes. Make sure that all necessary components are defined and correctly linked.
  
  
  
  Authorization Check:
  
  Verify that you have the necessary authorizations to access the hierarchy node. If you suspect authorization issues, consult with your SAP security team to ensure you have the required permissions.
  
  
  
  Data Model Configuration:
  
  If the error occurs in the context of a data model, review the configuration of the data model to ensure that it is set up correctly and that all necessary hierarchies are included.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance related to the hierarchy you are working with. This can provide insights into any additional steps or considerations.
  
  
  
  SAP Notes and Support:
  
  If the issue persists, check for any relevant SAP Notes that may address this specific error. You can search the SAP Support Portal for updates or patches that may resolve the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) or RSD1 (InfoObject Maintenance) to manage hierarchies.
  Hierarchy Maintenance: Understand how to maintain and manage hierarchies in SAP BW, including creating, modifying, and activating them.
  SAP Community: Engage with the SAP Community forums for discussions and solutions related to similar issues encountered by other users.
  
  By following these steps, you should be able to diagnose and resolve the error message CGPL_BW_INTERFACE001 effectively.