Reserved Fields are those custom fields that cannot be deleted and do not count towards your allotment of 60 custom fields. They include fields such as email, first_name, and last_name in Marketing Campaigns.
Let us know how we’re doing! Please rate this page:
If you require immediate assistance from Twilio SendGrid, please contact our support team. If you’ve spotted a documentation problem, please open a GitHub Issue!
Please note, we cannot resolve account and login issues reported on GitHub. Contact support for account assistance.
Thanks for helping us improve our docs!