How To Fix RSDD748 - Choose only one aggregate

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD - Message class for data manager

• Message number: 748

• Message text: Choose only one 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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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD748 - Choose only one aggregate ?

  The SAP error message RSDD748, which states "Choose only one aggregate," typically occurs in the context of SAP BW (Business Warehouse) when a user attempts to execute a query or perform an operation that involves multiple aggregates, but the system requires only one aggregate to be selected.
  Cause:
  This error usually arises when:
  
  Multiple Aggregates Selected: The user has inadvertently selected multiple aggregates for a query or operation that only allows for a single aggregate.
  Query Design Issues: The query might be designed in such a way that it references multiple aggregates, which is not permitted in certain contexts.
  Data Source Configuration: The data source or InfoProvider may be configured incorrectly, leading to the selection of multiple aggregates.
  
  Solution:
  To resolve the RSDD748 error, you can take the following steps:
  
  
  Check Query Settings:
  
  Open the query in the Query Designer.
  Ensure that only one aggregate is selected in the properties of the query.
  If multiple aggregates are being referenced, modify the query to use only one.
  
  
  
  Review Aggregate Settings:
  
  Go to the Aggregates section in the InfoProvider and check the settings.
  Make sure that the aggregates are correctly defined and that only one is being used in the context of your query.
  
  
  
  Modify Data Source:
  
  If the issue is related to the data source, check the configuration of the InfoProvider to ensure it is set up correctly.
  If necessary, create a new aggregate that meets the requirements of your query.
  
  
  
  Test the Query:
  
  After making the necessary adjustments, test the query again to ensure that the error is resolved.
  
  
  
  Consult Documentation:
  
  If the problem persists, refer to SAP documentation or support resources for further guidance on aggregates and query design.
  
  
  
  Related Information:
  
  Aggregates in SAP BW: Aggregates are pre-calculated summaries of data that improve query performance. Understanding how to create and manage aggregates is crucial for effective data modeling in SAP BW.
  Query Designer: Familiarize yourself with the Query Designer tool, as it is essential for building and modifying queries in SAP BW.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to aggregates and the RSDD748 error.
  
  By following these steps, you should be able to resolve the RSDD748 error and successfully execute your query in SAP BW.