How To Fix RSRV257 - &1 is an aggregate

RSRV257 - Overview

• Message type: E = Error

• Message class: RSRV -

• Message number: 257

• Message text: &1 is an aggregate

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.

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RSRV257 - Details

• The SAP error message RSRV257 indicates that a specific object (usually a characteristic or key figure) is an aggregate in the context of SAP BW (Business Warehouse). This error typically arises during the process of data modeling or when performing certain operations on InfoObjects, such as trying to delete or modify an aggregate.
  
  Cause:
  The error occurs because the object you are trying to manipulate is part of an aggregate. Aggregates are pre-calculated summaries of data that improve query performance by reducing the amount of data that needs to be processed during query execution. If you attempt to delete or modify an aggregate, SAP will prevent this action to maintain data integrity and performance.
  
  Solution:
  To resolve the RSRV257 error, you can follow these steps:
  
  
  Identify the Aggregate: Determine which aggregate the object is part of. You can do this by checking the aggregate definitions in the SAP BW system.
  
  
  Remove the Object from the Aggregate:
  
  Go