1) Knowing better than assuming
It is always, however bad the message might be, better to know and be able to prepare rather than get surprised.
2) Prepare and change
Being upfront gives you the advantage to stop, correct, or change – change vendor, change the production plan, change the route for transportation, alert partners or customers, etc.
3) Having or seeking information
Logging into several systems to look for possible irregularities is both time-consuming and no assurance for finding the fault. Vendor Management gives you access to order information directly in your own ERP system, an effective, quick, and easy way to keep informed.
Being informed in time is the best control of a complex supply chain with many actors!