How To Fix /SAPAPO/TSM028 - Choose an aggregation level

/SAPAPO/TSM028 - Overview

• Message type: E = Error

• Message class: /SAPAPO/TSM -

• Message number: 028

• Message text: Choose an aggregation level

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 /SAPAPO/TSM028 - Choose an aggregation level ?

  The SAP error message /SAPAPO/TSM028 Choose an aggregation level typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when working with the Planning Book or during the execution of certain planning functions. This error indicates that the system requires you to select an aggregation level before proceeding with the operation.
  
  Cause:
  
  Missing Aggregation Level: The most common cause of this error is that the user has not selected an aggregation level in the planning book or during a planning function execution.
  
  Configuration Issues: There may be issues with the configuration of the planning book or the data view, which could lead to the system not recognizing available aggregation levels.
  User Authorization: In some cases, the user may not have the necessary authorizations to access certain aggregation levels.
  
  
  Solution:
  
  
  Select an Aggregation Level:
  
  When prompted with the error, check the planning book or the relevant screen where the error occurred.
  Look for a dropdown or