Hello,
I think you are trying this in your development client. If so for the 0CO_PC_02 to populate you must have run the period end closing.
So for the orders (PP, QM , internal Orders) you have the variance and done the settlement then only 0CO_PC_02 will populate value. There is no other pre requisite for this datasource.
For eg for PP order if you have run the variance calculation KKS2 for the pp order, then 0CO_PC_02 will be populating the data for you.
please check and revert back
Regards
GN