If you don’t have a Facebook business account then you need to create one.

To create a Business Manager:​

  1. Go to business.facebook.com/overview
  2. Click Create an Account.
  3. Enter a name for your business, your name, and your work email address, and click Next.
  4. Enter your business details and click Submit.

    Refer - 1. Learn how to give admin access in Meta.

                  2. our blogs - blog.whatstool.business