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PATCH
https://api.resend.com
/
contact-properties
/
:contact_property_id
import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.contactProperties.update({
  id: 'b6d24b8e-af0b-4c3c-be0c-359bbd97381e',
  fallbackValue: 'Example Company',
});

{
  "object": "contact_property",
  "id": "b6d24b8e-af0b-4c3c-be0c-359bbd97381e"
}

​
Path Parameters

The key and type fields cannot be changed after creation. This preserves data integrity for existing contact values.

​
Body Parameters

import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.contactProperties.update({
  id: 'b6d24b8e-af0b-4c3c-be0c-359bbd97381e',
  fallbackValue: 'Example Company',
});

{
  "object": "contact_property",
  "id": "b6d24b8e-af0b-4c3c-be0c-359bbd97381e"
}