How to pull lookup field from one module to another

How to pull lookup field from one module to another

Hi there,

I want to be able to pull the deals field which is a lookup field from one module to another, which in this case i want to pull from the module purchase orders to Sample/product.

either through workflow or client script, whichever is easier or better to explain.










the deal name API for purchase orders is:
Deal
the deal name API for sample/product is:
Deal