We cannot tell from the documentation, and after spending some time trying to figure it out on our own, we have not been able to find a way to have volume-based pricing, e.g.

Qty List Price
1-24 1.25/ea.
25-49 1.10/ea.
50-99 1.00/ea.

Is this possible within OpenERP? If so, can someone explain how?

Also, can a product have multiple suppliers/partners each with it's own cost? We need to be able to have and sell a single product, but manage inventory and related costs by multiple suppliers, each of whom will have a different negotiated cost to us. Is that possible within OpenERP?