BO Profitability and Cost Management integration with ECC or BW

Hello Experts

We have a requirement to load master data and transaction data from ECC/BW to PCM.

Is it possible to load master and transaction data from financial information management application to PCM from ECC/BW. If yes, which is the best approach to load data ie BW or ECC.

Also,

1. Does it connect with some BW Content Cubes? Which ones?

2. On which components ( R/3 Modules ) does it connect with?

Not just the technical ( or Connection ) integration but the Functional Integration.

Please advise

Regards

Gaurav