So im using =SUMIF(SupplierUnpaid,"Unpaid",SupplierNetRange) to summarise a total of all unpaid supplier expenses on a cash flow sheet, from a sheet where each supplier transaction inhabits a row on my supplier sheet, Along each transaction row the transaction date is stored, simple enough but how do i add to this to return a the sum of all supplier invoices marked "Unpaid" and are older than 30 days from TODAY()?
Any help appreciated.
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