We have a constant problem with old incorrect orderinformation that is building up in Medius over time.
When we delete a orderrow in our ERP, that orderrow will still be active in Medius. With the matching setup we use, that old orderdata sometimes gets automatically connected to invoice (and that is lowering our touchless ratio).

My suggestion is:
When a order is imported to Medius, all previous orderdata (that has not yet been connected to a invoice) related to that order in Medius shall be set to inactive and then the new/updated orderdata is imported. That way no old orderdata will stay active in Medius.