How To Fix /SAPAPO/RELH031 - Select just one node in hierarchy tree

/SAPAPO/RELH031 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RELH -

• Message number: 031

• Message text: Select just one node in hierarchy tree

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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/SAPAPO/RELH031 - Details

• The SAP error message /SAPAPO/RELH031 indicates that the user has attempted to select multiple nodes in a hierarchy tree when only one node is allowed. This error typically occurs in the context of SAP Advanced Planning and Optimization (APO) when working with hierarchical data structures, such as product hierarchies or location hierarchies.
  
  Cause:
  The primary cause of this error is that the user has selected more than one node in a hierarchy tree where the system expects only a single node to be selected. This can happen due to:
  
  User error in selecting nodes.
  A misunderstanding of the interface or functionality that requires a single selection.
  A bug or issue in the user interface that allows multiple selections when it should not.
  
  
  Solution:
  To resolve the /SAPAPO/RELH031 error, follow these steps:
  
  Deselect Nodes: Ensure that only one node is selected in the hierarchy tree. Click on the node you want to select and make sure all other nodes