how to reconcile customer balances with control accounts

Hi!

Sanjay Here,

1. how to reconcile the customer balances pl. explain in details.

2. how to reconcile the customer balance with control accounts

3. how to do the automatic clearing through T code f.13. pl. give us the screen shots if available.

4. how to reset the T-code f.32 clearing documents, if wrongly showing in customer balance.