if a person send you a message and ask in the massege that I am from a cosmtics making company our product is so good to remove your acne from your face and our deal will be money back guarantee if you are agree to me then call me back. is it a digital marketing?

In the other way if you are seeing a movie and during watching you see an any advertisement of any product making compnay on your mobile or laptop homescreen. is it a digital marketing also?

if your answer is yes, in both cases then you are absolutly right.

this is digital marketing