Often customers will request quotes on different quantities of items in order to ensure they receive your best possible pricing.
Once you've entered in your base pricing on a request with multiple quantities, you will see the Add Quantities button appear under the item description.
Clicking on this button will bring up a window where you can input your pricing at the different requested quantities.
Only the price for the primary requested quantity is required, so if your pricing does not change with scale, or if you cannot supply the item at the requested quantities, you can leave the additional quantities blank.
After you've filled out any additional requested quantities and hit Save, simply submit your bid as normal.
If you are awarded the bid, the buyer will confirm the requested quantity with you before issuing a purchase order from their ERP system.