While payments for invoices are often due within 30 days, you can talk to your vendor about getting 60 or 90 days.
2. What will my total costs be?
While a supplier might give you a quote for the cost of a product or materials, be sure to ask about other fees. For example, are there delivery fees, fuel surcharges or restocking charges for returns that you must pay?
You don't want to get stuck with a finished product that flops or the parts and raw materials for a product that doesn't sell. Talk to your suppliers about their return policies. You want to negotiate the opportunity to return unsold products or materials.
Ask what determines a change in price. Is it tied to inflation or an industry index? If prices go up, how much notice will you receive?