How To Fix /SAPAPO/OO_TR621 - Select a hierarchy for the start location

/SAPAPO/OO_TR621 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OO_TR -

• Message number: 621

• Message text: Select a hierarchy for the start location

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 /SAPAPO/OO_TR621 - Select a hierarchy for the start location ?

  The SAP error message /SAPAPO/OO_TR621 Select a hierarchy for the start location typically occurs in the context of SAP Advanced Planning and Optimization (APO) when a user is trying to execute a transaction that requires a hierarchy selection for a specific location, but no hierarchy has been defined or selected.
  
  Cause:
  
  Missing Hierarchy: The most common cause of this error is that there is no hierarchy defined for the start location in the system.
  Incorrect Configuration: The configuration for the location or the planning area may not be set up correctly, leading to the absence of a valid hierarchy.
  User Input Error: The user may not have selected a hierarchy when prompted, or the selection may have been cleared inadvertently.
  
  
  Solution:
  
  
  Define a Hierarchy:
  
  Go to the transaction code /SAPAPO/HEIRARCHY to define a new hierarchy for the relevant location.
  Ensure that the hierarchy is properly structured and includes the start location.
  
  
  
  Check Existing Hierarchies:
  
  Use transaction /SAPAPO/HEIRARCHY to review existing