If you gave permission to your site users to sell their products using Premium Package front end, here you can manage withdraw request of shop owners, set mature period for their sell. You can specify Payout Duration, set role based commissions for user, view withdraw request by user, pay users through Paypal etc.
Users with front end access can add their own products and sell them. After a time period (set by administrator in Downloads -> Payouts -> Payouts Settings) known as “Payout Duration”. By this payout duration if customer did not request refund or did not get requested products, admin can assume that customer transaction was successful and package/product owner can make a request for an withdraw by Seller front end. If customer request a refund or complain that He/She did not get desired product, administrator can cancel the requested transaction from Orders menu in WordPress admin panel and the user will not be paid for this transaction. Here are the steps with relevant screenshots: