Suppliers in the system are the companies that you purchase stock and materials from, whether it is stock or finishing supplies.  

The supplier must first be added to the system before they can be added to a stock or a supply.

For more information on adding suppliers, see Suppliers - Creating a New Supplier.  

A supplier is required for any stock or supply in the system. The supplier will appear on any stock or supply under the Details section. 

When placing a purchase order, a supplier will also need to be selected. 

Any of the supplier's contacts, with an email, will appear in the 'To' drop-down when emailing the purchase order.