Wrong contacts on new MacBook Air
So, after setting up my new MacBook Air, I began to notice that when a text came through the contacts are all my son's, not mine. If I text back, it shows up as coming from me and he is not getting any of these texts on his phone. I need to know how to replace his contacts with mine. We've had issues before with him getting my texts to others but he is not getting the texts that come to my MacBook Air.
MacBook Air (2018 or later)