It recognises the product, not just the invoice line.
Suppliers write it however they like. The product is recognised, and what does not exist is flagged instead of slipping through.
Reading a line is not enough: you have to know which product it is talking about. The reader identifies the item against your master catalogue and stores the reference that supplier uses for it, so the next invoice recognises it on its own.
It then takes the amount down to a cost per unit, because a case of twenty-four does not cost the same as a tin, and when the document does not spell out how many units the format holds, it infers it from the line's own context. If the product is sold by weight or by volume, it respects that measure and does not split the price into units that do not exist.
You do not have to switch everything on. Tell us how you work and we will tell you where to start. ATAZEL is in testing: write to [email protected].