Facebook is an online platform to start a small business easily to sell their products as well as maintain and manage the online store. To start your business, you have need of a valid business Tax id as well as a valid bank account details and you have to accept all merchant terms. Tax id number is mentioned whenever you are selling any items. If you think that Tax id is necessary or not, then you have ensured that it is mandatory. For further, use Facebook customer service.
https://www.contact-mailsupport.com/fac ... ne-number/