An ERP does not know anything about your warehouse. It knows what people have told it about your warehouse, and it repeats those statements back with a precision that they never earned.
The gap is structural, not cultural
Every field that a person types is a place where the record and the world can diverge. No amount of training closes that gap, because the gap is not made of carelessness - it is made of the distance in time and space between the event and the entry.
What to do instead
Capture identity from the item, quantity from an instrument, and context from the device in the operator’s hand. Then the ERP has something to repeat that was true when it was written.