Register the list of companies you are dealing with so it help you to get sales record of company wise.
You can register your salesman through which you are selling your goods.
You can register your transport vehicles to track there records.
You can create your suppliers and manage the records and payments of purchasing.
You can save the requested items of your customer so this will remind you to complete the requests.
You can order you items or goods from supplier using purchase order
Picklist is used to view the items assigned or sold to saleman so he will the list of items from your wear house by showing this pick list.
If you are distributor or selling items in whole sale then this option is designed to deal with wholesale selling items.
Mostly customer returns there items so in order to accept this as a return you can use this option to store your return items.
You can sell you product with pos to each single customer with POS you can sell items on credit so it will automatically credit the customers account.