Create a Custom Field
POST https://api.sendgrid.com/v3/contactdb/custom_fields
This endpoint allows you to create a custom field.
You can create up to 120 custom fields.
The contactdb is a database of your contacts for SendGrid Marketing Campaigns.
HEADERS
| Key | Datatype | Required | Description |
|---|---|---|---|
Accept | string | ||
Content-Type | string |