Your business ID corresponds to your Facebook Business Manager. You will need this ID to request a Whatsapp Business Account (WABA). If you do not have access to the Facebook Business Manager of your company, you can reach out to the Marketing Department or to whomever is in charge of managing social media.
Steps to find your business ID:
- Go to Business Settings.
- Click Business Info.
- Below Business Manager Info, you'll see your ID number (see screenshot below).