How To Fix CGPL_BW_INTERFACE004 - Neighbouring hierarchy node &1 must be expanded

SAP Error Message - Details

• Message type: E = Error

• Message class: CGPL_BW_INTERFACE - BW Interface

• Message number: 004

• Message text: Neighbouring hierarchy node &1 must be expanded

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_INTERFACE004 - Neighbouring hierarchy node &1 must be expanded ?

  The SAP error message CGPL_BW_INTERFACE004 indicates that a neighboring hierarchy node must be expanded in the context of a BW (Business Warehouse) query or report. This error typically arises when the system requires additional data from a hierarchy that is not currently visible or expanded in the report or query context.
  Cause:
  The error occurs when:
  
  A hierarchy node is collapsed, and the system needs to access data from its child nodes to fulfill the query or report requirements.
  The query is designed to display data that relies on the expanded view of a hierarchy, but the necessary nodes are not expanded.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Expand the Hierarchy Node:
  
  Navigate to the hierarchy in your report or query.
  Manually expand the neighboring hierarchy node that is indicated in the error message (represented by &1).
  Ensure that all necessary parent and child nodes are expanded to allow the query to access the required data.
  
  
  
  Adjust Query Settings:
  
  If you are using a BEx Query Designer, check the settings for the hierarchy in your query.
  Ensure that the hierarchy is set to display all relevant nodes or that the default behavior is to expand nodes as needed.
  
  
  
  Check Data Source:
  
  Verify that the data source for your query is correctly set up and that it includes all necessary hierarchy levels.
  Ensure that the data is loaded correctly into the InfoProvider.
  
  
  
  Review Hierarchy Structure:
  
  If the hierarchy structure has changed (e.g., nodes added or removed), ensure that the query is updated to reflect these changes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on handling hierarchy nodes in BW queries.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like RSRT (for executing queries) or RSA1 (for data modeling) to troubleshoot and adjust your BW queries.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance related to this error message.
  Support: If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.
  
  By following these steps, you should be able to resolve the error and successfully run your BW query or report.