Input Ready query - BW

Hi Team,

I need to create the input ready query for the users where they can manipulate few finance related information in the reports. This data then need to feed to BW cube. Users are using BPC.

We have actual & Plan cube and on top we have created one multiprovider. My requirement is how can I create the input ready query using BPC.

1.Do I need to create any cube in BPC and on top of that I need to create query

2. If yes then how the data will feed to BW

3. if no can I create my query on BW multiprovider but then how the modified data will go into BW

Need little clarity and your guidance on the same.

Regards,

Reena