How To Fix RSDD744 - The aggregate is 'flat', that is, it has less than 14 characteristics

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD - Message class for data manager

• Message number: 744

• Message text: The aggregate is 'flat', that is, it has less than 14 characteristics

What causes this issue?

Flat aggregates can be filled directly with database tools, this means a
detour through the ABAP is not necessary and DIMIDs do not have to be
retrieved because the characteristic is exactly one dimension and the
dimension tables are replaced with a view of the SID table of the
characteristics (a "Line Item" Dimension). An exception is the package
and unit dimensions, which are both not split into line item dimensions.
Flat aggregates provide performance advantages during data loading
(rollup) and possibly also during reporting.
For technical reasons, flat aggregates are not possible for non-
cumulative cubes!

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD744 - The aggregate is 'flat', that is, it has less than 14 characteristics ?

  The SAP error message RSDD744 indicates that the aggregate you are trying to create or use is classified as "flat," meaning it has fewer than 14 characteristics. This can occur in the context of SAP BW (Business Warehouse) when working with aggregates in InfoCubes.
  Cause:
  
  
  Characteristics Count: The primary reason for this error is that the aggregate you are working with has fewer than 14 characteristics. In SAP BW, aggregates are used to improve query performance by pre-calculating and storing summarized data. However, SAP has a limitation that aggregates with fewer than 14 characteristics are considered flat and cannot be processed in the same way as more complex aggregates.
  
  
  Design of the InfoCube: The design of the InfoCube may not have enough characteristics defined, or the specific aggregate you are trying to create is not designed to meet the minimum requirement.
  
  
  Solution:
  
  
  Review Aggregate Design: Check the design of the aggregate and ensure that it includes at least 14 characteristics. If it currently has fewer, consider adding more characteristics to meet the requirement.
  
  
  Modify InfoCube: If the InfoCube itself has fewer than 14 characteristics, you may need to redesign the InfoCube to include additional characteristics. This may involve adding new dimensions or attributes that can enhance the data model.
  
  
  Use Different Aggregates: If the aggregate is not essential for your reporting needs, consider using a different aggregate that meets the characteristic requirement or use the base InfoCube directly for your queries.
  
  
  Check for Updates: Ensure that your SAP BW system is up to date, as there may be patches or updates that address specific issues related to aggregates.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more detailed guidance on aggregates and characteristics in BW.
  
  
  Related Information:
  
  SAP BW Aggregates: Aggregates are pre-calculated summaries of data that improve query performance. They are defined based on characteristics and key figures.
  Characteristics: In SAP BW, characteristics are attributes that describe the data, such as time, location, product, etc.
  Performance Tuning: Properly designed aggregates can significantly enhance the performance of queries in SAP BW, especially for large datasets.
  SAP Notes: Check SAP Notes for any specific issues or recommendations related to the RSDD744 error message.
  
  By addressing the characteristics count and ensuring that your aggregates are designed correctly, you should be able to resolve the RSDD744 error.