F110 for Customers

Hi

How to use the payment program F110 for Customer payments? Is it only to be used for collection from customers or also can be used for payment to customers(credit balance)?

What is the process for collection from customer through F110? My understanding is that, if we have an automatic debit authorization from our customer and if we maintain the customer bank details in the Master data (Payment transaction tab), the payment program F110 will output a list of dues from customers based on payment terms and we can send this list to our bank for further collection from our customers bank. The list will output the customer bank details maintained in the master data so that our bank can contact these banks for collection. Is my understanding correct on the collecting customer payments?

Is it also possible to pay to customers for any credit balances through F110 and how feasible is this if there are multiple line items?

Any advice on use of F110 with respect to customer payments is highly appreciated

Thanks

Shiv