Database table for the report S_ALR_87013019

Hi,

I am working on an FI object, I need to capture the data that is being displayed as output for the transaction S_ALR_87013019 into internal tables. I understand it is a report painter and is using the structure RWCOOM. But, I want to know exactly from what table it is being displayed.

If anybody is aware of it, can you please let me know?

Thanks,

Adithya K