Incompletion Log: PRSOK field

While copying an existing incompletion procedure for the item, saving it as a new one and then modifying it, I came across the PRSOK field. Yes, I know this works hand in hand with NETWR in informing the user there is a missing pricing information.

But I was wondering:

1) can you just leave NETWR in the procedure and take out PRSOK?

2) What specifically does PRSOK do that NETWR will not cover?

I took out PRSOK and did not notice anything different in terms of messaging, screens or the like when I saved the document.

Thanks.