0CO_OM_CCA_1's values are not matching with S_ALR_87013611

Hi

We required Act. Costs, Plan Costs and Var.(Abs.) of S_ALR_87013611 in BW so I select 0CO_OM_CCA_1.

But when I run RSA3 on datasource 0CO_OM_CCA_1 the Fixed Amount, Amount and Variable Amount 's values of any GL are 90% not matched with S_ALR_87013611's Act. Costs, Plan Costs and Var.(Abs.) of respected GL in specific year.

Am I select the correct datasource for S_ALR_87013611 If yes what is the issue?

Thanks