When a company ignores your emails/phone calls. Not quite the equivalent to ghosting in relationships, since you’re not looking for some flix & chill — but the idea is similar.
Also applies to when an individual who is exchanging services with you ignores your emails.
Her: “I have sent three follow-ups with no reply! Am I doing something wrong?”
Him: “Nah, you’re just getting that classic business ghosting going on, sis.”