How To Fix R7I306 - Only select one hierarchy node

SAP Error Message - Details

• Message type: E = Error

• Message class: R7I - InfoProvider

• Message number: 306

• Message text: Only select one hierarchy node

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message R7I306 - Only select one hierarchy node ?

  The SAP error message R7I306, which states "Only select one hierarchy node," typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when a user attempts to execute a query or report that requires the selection of a single node from a hierarchy, but multiple nodes have been selected instead.
  Cause:
  
  Multiple Selections: The user has selected more than one node from a hierarchy (e.g., a characteristic hierarchy) when the system expects only one node to be selected.
  Query Design: The query or report may be designed to only allow single node selections for certain characteristics or filters.
  Hierarchy Structure: The hierarchy itself may be structured in a way that does not allow for multiple selections, depending on the business logic or reporting requirements.
  
  Solution:
  
  Select a Single Node: Review your selection criteria and ensure that you are only selecting one node from the hierarchy. Deselect any additional nodes that may have been inadvertently selected.
  Check Query Settings: If you are using a query, check the settings in the query designer to ensure that the characteristic is set to allow only single selections.
  Hierarchy Navigation: Use the hierarchy navigation features to drill down to the desired node and select it explicitly, ensuring that no other nodes are selected.
  User Documentation: Refer to any user documentation or training materials provided for the specific report or query to understand the selection requirements better.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. Sometimes, there may be patches or updates that address specific issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they have found.
  Testing: If you are a developer or administrator, consider testing the query in a development environment to replicate the issue and understand the underlying cause better.
  
  By following these steps, you should be able to resolve the R7I306 error and successfully execute your query or report in SAP.