Refurbishment of non valuated material

Hi!

We don't use refurbishment today but I think it would be a good solution to use. I tried to set up the process but I get into problem with our non-valuated material. I get a error message when I release the order complaining about a missing price on the material. We don't have any price on the material and we don't want to use split valuation. Does anyone know if it's possible to use the refurbishment order for materials without any valuation. What am I missing?

//Kristoffer