Thanks for your response; I previously had it set up as a ForAll function straight from the gallery (no collection), but was noticing performance issues which is why I thought using a collection might be faster. Do you mean Patching from the gallery or a ForAll function for the collection? I have tried this before and keep coming up with the same issues so am wondering what I'm doing wrong. I may not be doing the ForAll properly; the collection column names are cre92_vacationhours and it's looking for just 'Vacation Hours'. I tried renaming the columns previously but couldn't get that to work either.