How To Fix RO034 - Rank can only be entered for reference category 'REF'

RO034 - Overview

• Message type: E = Error

• Message class: RO - Messages for (R)eferences between (O)bject numbers

• Message number: 034

• Message text: Rank can only be entered for reference category 'REF'

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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RO034 - Details

• The SAP error message RO034, which states "Rank can only be entered for reference category 'REF'," typically occurs in the context of SAP's reporting or analysis tools, particularly when dealing with ranking functions in reports or queries.
  
  Cause:
  This error arises when you attempt to assign a rank to a category that is not recognized as a reference category. In SAP, the reference category 'REF' is a specific category that allows for ranking operations. If you try to apply ranking to a different category or if the configuration of the report/query does not align with the expected reference category, this error will be triggered.
  
  Solution:
  To resolve the RO034 error, you can take the following steps:
  
  
  Check Category Configuration: Ensure that the category you are trying to rank is indeed set up as a reference category. You may need to review the configuration settings in the relevant SAP module (e.g., SAP BW, SAP HANA, etc.).
  
  
  Use