To prevent users from attempting to order items from the wrong supplier you can associate products to particular suppliers. This will also automatically assign the saved cost price and Suppliers Product Reference for these products when you add them to your Purchase Order.
Tip: You can create a Purchase Order for your suppliers without connecting them first, however you will need to manually enter the cost price for these products each time. To learn how to do this check out the Adding Products To POs guide.
To add your supplier to a product follow these steps:
1. From the Products page find the product you want to add to the supplier then hit the Suppliers tab. Next to the relevant supplier enter the suppliers Reference for that product (optional) and the Cost Price.
Associating suppliers and products by CSV