Custom Formula to look at a different GSheet
问题 I am still trying to wrap my head around using script, so my apologies if this is basic. I have a summary Spreadsheet that pulls values from hundreds of other documents. This used (too many) importrange formulas, but many of these are now #REF or ...Loading. I am trying to create a custom formula that will mimic the importrange function and return the values. I thought the hard part would be getting the formulas to update when another document was updated, but I have fallen right at the start