Hello, how can I create a field

created from

like the one on an item receipt but on a bill, I want to show the user the PO number from were a bill was created

I think the quick and dirty way is to create a PO field on the PO, which populates with itself (using an aftersubmit script). and then any further record transformations populate with this field already set and then you can perform reporting. it's not native or ideal, but it works