Try PATCH /contact-properties/{id} — Resend

Credentials

Resend API key · sent as Authorization

Kept in this tab only. Requests go through apicheats.dev's same-origin proxy straight to api.resend.com; the proxy stores and logs nothing about them.

Headers

User-Agent · fixed

Path

id · required · string The Contact Property ID.

Body application/json

1 body fields

fallback_value · optional · string — The default value to use when the property is not set for a contact. Must match the type of the property.

Try PATCH /contact-properties/{id} — Resend API

Credentials

Headers

Path

Body application/json