You can modify the Intelligent Cube a report accesses for its data requirements. This allows you to switch to an Intelligent Cube that fits your reporting requirements without having to create a new report.
Prerequisites:
Cube B must meet below requirements.
To do this, edit the report in developer and go to the Report -> Data->Intelligent Cube Options->Point grid to Intelligent Cube and choose the new target cube:



2.Create Cube B which contains all objects in the report and publish it .


4.The report retrieves data from Cube B now.

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