I have a scheduled script (2.0) that is updating custom transaction line fields on the expense sublist on expense reports via a custom import. It's working as expected (after I added a line to format the line number to account for the pesky sublist 0-index change in 2.0) for all expense reports except one very specific type. We use a third party app to do all of our expense reports (Nexonia) and some of these expense reports are corporate credit card reconciliations that come over as 0.00 to reimburse. These expense reports won't allow me to update the custom transaction line fields and I just get a generic SuiteScript error that says "User Error" without any good details to help me pinpoint this. So example: line 0 = 0.00, line 1 = negative sum of all the rest of the expense lines (-609.69), lines 2-14 = normal. I am only trying to update lines 2-14. I get the generic user error if I include lines 0 and 1 and also if I don't. Am I missing something finicky about expense report sublists if they have these first two lines?

not that i know of, you can try using dynamic mode to see if it gives a more helpful error message