The workflows we move off NetSuite.

Ten days to close, and most of it is waiting, then a bill dated last month arrives after the lock

Every supplier bill is keyed by hand, and the one that got paid twice turns up next month

Every entity's books are right, and the number you take to the board is still typed into a spreadsheet

The warehouse runs on a second system, and by Friday it and the ledger disagree about the same shelf

You quoted it once, then keyed it again as an order, again as a delivery, again as an invoice

Somebody approved it in a thread, and it arrives as an invoice nobody recognises

Next month is planned in a spreadsheet, because the system holds what was sold and what is on the shelf but not what has to be made