# Why is a phone number required to add a buyer?

Phone is an identity and deduplication field used to link the buyer with the connected CRM contact. Use a real phone number you are authorized to store; a readable US example is +1 (916) 555-4566.

Open Buyers -> My Buyers -> Add Buyer, enter the required name and phone, then fill in the buy box you actually know. Saving can create or match the CRM contact. Do not invent an email or purchase history just to complete optional fields.

Read online: https://docs.closemagnet.com/articles/questions/why-phone-required-for-buyer