provider Contacts API - Custom Fields GET /contactdb/reserved_fields
@utdk/sendgrid /contactdb/reserved_fields
Retrieve reserved fields
**This endpoint allows you to list all fields that are reserved and can't be used for custom field names.**
on-behalf-of header
string

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Authentication
Configure credentials for Email Activity (beta)
getContactdbReservedFields
GET/contactdb/reserved_fields
**This endpoint allows you to list all fields that are reserved and can't be used for custom field names.**

Configure credentials above to enable sending.

Code snippet
Updates live as you fill in the form above.

TypeScript

import sendgrid from '@utdk/sendgrid';

await sendgrid.getContactdbReservedFields({
  "on-behalf-of": "The subuser's username. This header generates the API call as if the subuser account was making the call."
})