---
title: "Update subscriber first name"
method: PUT
path: "/subscribers/{subscriberId}/first-name"
tags: ["Subscribers"]
---

# Update subscriber first name

`PUT /subscribers/{subscriberId}/first-name`

## Request

- Base URL: `https://api.maildroppa.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.maildroppa.com/subscribers/{subscriberId}/first-name`
- Auth: API key in header `X-API-Key`

Changes only the first name. A null value clears it.

## Path parameters

- `subscriberId` string, uuid, required

## Request body

- ReplaceSubscriberFirstName
  - `firstName` string, required: New first name. Null clears it.

## Response `204`

First name replaced.

## Other responses

- `400`: Invalid first name request.
- `401`: Not Authorized
- `403`: Not Allowed
- `404`: Subscriber not found.
- `428`: Accept the customer agreements in the app before using API keys.

---

[API](https://skmtc.dev/maildroppa/apis/maildroppa-api-beta.md) · [All operations](https://skmtc.dev/maildroppa/apis/maildroppa-api-beta/llms.txt) · [OpenAPI document](https://skmtc.dev/maildroppa/apis/maildroppa-api-beta/revisions/a9f5a3fd1fb0?raw)