Qiadjohar,

Thank you so much for your response, let me clarify because I do not think that solution is what I need.

I am working on the form in the product.template and I have this related field named prefered supplier (m2o for "supplier pricelist). I want this prefered supplier list to only show the vendors added in the product.template tab for purchasing, for the current product that I am under, this way I can select one vendor from the list of vendors for this specific product. Right now without domain filtering, I see all supplier pricelists and not the ones specific to the product that I am on.