Yes, you can have CoolSculpting with a pacemaker. However, it is not recommended to have CoolSculpting in the same area as the pacemaker.
You should be fine to have the Coolsculpting procedure even with a pacemaker. I would avoid treating ares in proximity to the pacemaker. I would also ensure that you share any other medical conditions prior to your treatment so they can guide you as to any additional risks that are involved.
You should not have any problem undergoing the CoolSculpting procedure if you have a pacemaker. You will want to let the practice that you go to for treatment know in your new patient paperwork as well as verbally during the consultation so that they can have a thorough understanding of your medical history prior to clearing you for treatment. Best of luck.