---
title: Field Type Code
slug: en/nicepay-code-messaging-field-type-code-sms-api
description: Information about NICEPAY Code SMS API - Field Type Code available on NICEPAY Messaging - SMS API system
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docTags: 
createdAt: 2022-08-15T04:34:12.000Z
---

Each field in the NICEPAY API parameter has a different data type, the IT Developer can fill in the value of the key parameter according to the field type specified in the table below.

| **Key** | **Description**              |
| ------- | ---------------------------- |
| `A`     | Alphabet                     |
| `AN`    | Alphanumeric                 |
| `N`     | Number                       |
| `ANS`   | Alphanumeric, Number, Symbol |
| `AOO`   | Array of Object              |