Resend API (unofficial showcase)
PATCH/contact-properties/{id}

Update a contact property

Updates the fallback value for an existing contact property. Supply a fallback_value that matches the property’s type to change the default used when the property is unset for a contact.

  • IdempotentThe SDK sends Idempotency-Key, so a retried request is only applied once.

1 parameter · 1 body field
idstringrequired
The ID of the contact property to update.

Contact property fields to update.

fallback_valuestringoptional
The default value to use when the property is not set for a contact. Must match the type of the property.

1 status code
200Returns the contact property’s ID and the response object type.
idstringoptional
The ID of the contact property.
objectstringoptional
The object type.

Error handling

The id path parameter must identify the contact property you want to update. fallback_value must match the type of that property.