It's rarely dramatic. Stock and orders get rekeyed between an ageing package and a spreadsheet. Despatch or scheduling depends on one person who can't ever take a holiday. The off-the-shelf tool almost fits, and almost is what's costing you.
We fix the specific points where that's costing you time and money: the report that takes half a day, the data typed in twice, the process that lives in someone's head. We do it carefully, and we don't rip out everything that still works.
Start with the one process costing you the most. Fix that first.


