---
title: "PATCH /crm/objects/2026-03/postal_mail/{postalMailId}"
method: PATCH
path: "/crm/objects/2026-03/postal_mail/{postalMailId}"
tags: ["Basic"]
---

# PATCH /crm/objects/2026-03/postal_mail/{postalMailId}

`PATCH /crm/objects/2026-03/postal_mail/{postalMailId}`

## Request

- Base URL: `https://api.hubapi.com`
- URL: `https://api.hubapi.com/crm/objects/2026-03/postal_mail/{postalMailId}`
- Auth: none required

## Path parameters

- `postalMailId` string, required

## Query parameters

- `idProperty` string

## Request body

- SimplePublicObjectInput: Represents the input required to update a CRM object, containing an object with property names and their corresponding values.
  - `properties` object, required: Key value pairs representing the properties of the object.

## Response `200`

successful operation

- SimplePublicObject: A simple public object.
  - `archived` boolean, required: Whether the object is archived.
  - `archivedAt` string, date-time: The timestamp when the object was archived, in ISO 8601 format.
  - `createdAt` string, date-time, required: The timestamp when the object was created, in ISO 8601 format.
  - `id` string, required: The unique ID of the object.
  - `objectWriteTraceId` string: An identifier used to trace the creation or update request of the CRM object.
  - `properties` object, required: Key-value pairs representing the properties of the object.
  - `propertiesWithHistory` object: Key-value pairs representing the properties of the object along with their history, each with a timestamp and source information.
  - `updatedAt` string, date-time, required: The timestamp when the object was last updated, in ISO 8601 format.
  - `url` string: The URL associated with the object.
  - `warnings` PublicObjectWarning[]
    - `category` string, required: The classification of the warning, indicating the type or nature of the issue.
    - `context` object, required: Additional information or metadata about the warning, providing context for understanding the issue.
    - `message` string, required: The text of the warning message, providing information about the issue or alert.

## Other responses

- `default`: An error occurred.

## Changes

- **2026-09-22** (2026-03) `cc578f3a55a3`: 1 info
  - the endpoint scheme security `oauth2` was removed from the API
- **2026-06-23** (2026-03) `b8d9446f9691`: 1 info
  - added the optional property `warnings` to the response with the `200` status
- **2026-04-15** (2026-03) `712a22ca2cea`: 5 info
  - the endpoint scheme security `app_cookie` was removed from the API
  - the endpoint scheme security `hapikey` was removed from the API
  - the endpoint scheme security `internal_cookie` was removed from the API
  - the endpoint scheme security `private_apps` was removed from the API
  - …1 more

[Operation history](https://skmtc.dev/hubspot/apis/crm-postal-mail/changes/crm/objects/2026-03/postal_mail/:postalMailId/patch.md)

---

[API](https://skmtc.dev/hubspot/apis/crm-postal-mail.md) - [All operations](https://skmtc.dev/hubspot/apis/crm-postal-mail/llms.txt) - [OpenAPI document](https://skmtc.dev/hubspot/apis/crm-postal-mail/revisions/7d655b884479?raw)