---
title: "RecipientField"
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.cardzone.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# RecipientField

Path: Cardzone B2B API

## Fields

- `key` (`RecipientField.key`; string, required) — Product-configured canonical key, including custom keys such as region_id or account_tag. Never a provider parameter name.
  - pattern `^(?!constructor$|prototype$)[a-z][a-z0-9_]*$`
- `label` (`RecipientField.label`; string, required) — Localized display label; use key, not label, in recipient requests.
- `required` (`RecipientField.required`; boolean, required)
  - one of `true`


Source: https://docs.cardzone.ai/reference/schemas/RecipientField/index.md