How To Fix O9028 - Please choose a valid function

O9028 - Overview

• Message type: E = Error

• Message class: O9 - IS-Oil: TD - Scheduling, loading, delivery confirmation

• Message number: 028

• Message text: Please choose a valid function

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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O9028 - Details

• The SAP error message O9028, which states "Please choose a valid function," typically occurs in the context of using certain functions or features within the SAP system that are not available or not properly configured. This error can arise in various scenarios, such as when working with transaction codes, reports, or specific functionalities in SAP.
  Causes:
  
  Invalid Function Selection: The user may have selected a function that is not valid in the current context or transaction.
  Authorization Issues: The user may not have the necessary authorizations to access the selected function.
  
  Configuration Issues: The function may not be configured correctly in the system, or it may not be activated.
  System Version: The function may not be available in the version of SAP being used.
  User Role: The user role may not include access to the function being attempted.
  
  Solutions:
  
  Check Function Validity: Ensure that the function you are trying to access is valid for the current transaction or