---
title: "Changes to Create a new carrier account"
method: POST
path: "/carrier_accounts"
---

# Changes to Create a new carrier account

`POST /carrier_accounts`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 14 revisions.

- **2026-10-28** `0eab5a94b0c3`: 1 info
- **2026-10-27** `da10ecb21187`: 1 breaking, 1 info
- **2026-07-12** `7e1ec201b515`: 2 breaking, 1 info
- **2026-04-11** `ed0d1853e790`: 2 breaking, 12 info

## Changes

- **2026-10-28** `0eab5a94b0c3`: 1 info
  - added the new optional `header` request parameter `SHIPPO-ACCOUNT-ID`
- **2026-10-27** `da10ecb21187`: 1 breaking, 1 info
  - added `#/components/schemas/UPSConnectExistingOwnAccountStreamlinedParameters` to the `allOf[#/components/schemas/CarrierAccountBase]/parameters` response property `oneOf` list for the response status `201`
  - added `#/components/schemas/UPSConnectExistingOwnAccountStreamlinedParameters` to the `parameters` request property `oneOf` list
- **2026-07-12** `7e1ec201b515`: 2 breaking, 1 info
  - for the `header` request parameter `SHIPPO-API-VERSION`, default value `2018-02-08` was added
  - removed the enum value `true` of the request property `parameters/oneOf[subschema #2: FedEx account parameters]/use_multi_factor_registration`
  - removed the `true` enum value from the `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/use_multi_factor_registration` response property for the response status `201`
- **2026-04-11** `ed0d1853e790`: 2 breaking, 12 info
  - added the new required request property `parameters/oneOf[subschema #2: FedEx account parameters]/use_multi_factor_registration`
  - added the new required request property `parameters/oneOf[subschema #2: FedEx account parameters]/verification_option`
  - added the new optional request property `parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_amount`
  - added the new optional request property `parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_currency`
  - added the new optional request property `parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_date`
  - added the new optional request property `parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_number`
  - added the new optional request property `parameters/oneOf[subschema #2: FedEx account parameters]/verification_pin`
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_amount` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_currency` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_date` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_number` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_pin` to the response with the `201` status
  - added the required property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/use_multi_factor_registration` to the response with the `201` status
  - added the required property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_option` to the response with the `201` status

---

[Operation](https://skmtc.dev/goshippo/apis/shippo-external-api/docs/carrier_accounts/post.md) - [API](https://skmtc.dev/goshippo/apis/shippo-external-api.md) - [Page](https://skmtc.dev/goshippo/apis/shippo-external-api/changes/carrier_accounts/post)