Contacts

The Twilio SendGrid Marketing Campaigns Contacts API allows you to add, update, and delete contacts in your SendGrid account. You can also import and export contacts in bulk via CSV.

A contact can belong to a maximum of 250 lists. When you add or update contacts, you can include up to 10 list IDs in the list_ids field of a single request. To add contacts to more lists, send another request with the additional list IDs.

For more guidance on working with contacts, see Create and Manage Contacts.

Building and maintaining a healthy contact list is an essential first step in building trust as an email sender. A healthy contact list also enables you to build intelligent segments and Automations to reach your customers with the right message at the right time.