What is it?

Identify who you buy the material from and what it costs.

When do I do it?

As part of the procedure to identify a new raw material.

How do I get there?

Press Suppliers button on the Options tab of the Add Raw Materials form.

This brings up the list of suppliers that can supply your material; initially it will be empty.

Press New on the supplier list.

What must I do?

Press the Supplier button and select, or add New, the supplier that can supply your material.

Select the Costs tab and fill-in the price the supplier charges.

Press Save, Close, etc. as appropriate.