Allow POL and INV Line 'Save' with errors. NOT 'Save and Continue'--just 'Save'.
We occasionally need to create a POL on the fly, and before I've set up the relevant fund--usually because a vendor needs a POL number right away, but information in hand can be incomplete for other reasons as well.
'Save and Continue' should remain totally impossible without mandatory fields completed, but it's annoying to have to re-start work from scratch when I realize I'm missing a bit of info, e.g. price or fund. As it is, I usually just throw in a fake price and an existing fund as a placeholder, but those just blend in if I get de-railed midstream.
If it were possible to leave blanks on initial 'Save', the info already entered would not have to be re-typed, and such orders, if not completed immediately, would be easy to i.d. through an Analytics query if the operator (not always me) got diverted .