SAP Knowledge Base Article - Public

3019780 - Error: An internal server error occurred in the SAP Analytics Cloud agent: UNABLE_TO_REFINE_SELECTION when trying to import data. SAP Analytics Cloud (SAC) & SAP Digital Boardroom KBA Template - Product Version Specific (LOD-ANA Template)


The following Error occurs in SAP Analytics Cloud (SAC):

ErrorAn internal server error occurred in the SAP Analytics Cloud agent: UNABLE_TO_REFINE_SELECTION


  • SAP Analytics Cloud (Enterprise) 2020.21.11

Reproducing the Issue

  1. Create Model off BW
  2. Error is displayed


  • As from C4A agent version 1.0.303, the model import behavior was improved in order to reduce memory consumption for both C4A agent and also of the BW system.
  • We use the BW safety belt to restrict the amount of data that will be fetched by the cloud agent to 5 million cells (or a smaller value if your BW safety belt does not permit that many cells).
  • If that threshold is hit, we read the members of the selected characteristics - one characteristic at a time and without selecting any key figures - and use the members for splitting the result set.
  • At this stage we did not consider the case of zero value suppression, where rows will be skipped if the condition for zero suppression is met - which is basically always the case if no measures are selected.
  • No members will be found for any characteristic and we the C4A agent is not able to split the result set into smaller parts.


  • A fix is scheduled for a future release of the Cloud Agent
  • Workaround:  deactivate zero suppression in the BW query. 

See Also

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SAP Analytics Cloud 1.0 ; SAP BusinessObjects Roambi, cloud edition 71