I run an industrial packaging wholesale business in İzmir. We're a small team of 4. I track accounts, due dates, collections, and supplier payables in a spreadsheet I built when I founded the business three years ago. It got the job done until now, but we've crossed 140 active accounts.
We made two huge blunders in the last two months: one time a formula shifted, so a 45,000 TL collection showed up as unpaid and we asked the customer to pay twice; the other time, a hidden cell caused us to overlook an overdue supplier invoice and we paid a 12,000 TL late fee. As the file grew, opening it got sluggish, and whenever multiple people get in at once, sync goes crazy.
How far can you really push this in spreadsheets? At what account volume does switching to commercial bookkeeping software become unavoidable, and how should we migrate the data?