---
title: "Changes to Change Plan"
method: POST
path: "/api/v1/billing/change-plan"
---

# Changes to Change Plan

`POST /api/v1/billing/change-plan`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 9 of 39 revisions.

- **2026-11-03** `3e862146bf53`: 1 info
- **2026-10-30** `77c7e3ee70cf`: 2 info
- **2026-10-30** `a0729c3c4a0b`: 2 info
- **2026-10-30** `db54363f5b0b`: 1 info
- **2026-10-29** `41fd94c1ba5c`: 1 info
- **2026-10-21** `08aa1758cee4`: 6 info
- **2026-10-21** `43519e4ad6d8`: 10 info
- **2026-10-14** `0d26e2e0266f`: 1 info
- **2026-09-16** `8fdfe5fd9d6b`: 2 info

## Changes

- **2026-11-03** `3e862146bf53`: 1 info
  - added the optional property `billing_account_available` to the response with the `200` status
- **2026-10-30** `77c7e3ee70cf`: 2 info
  - added `#/components/schemas/HTTPValidationError` to the response body `allOf` list for the response status `422`
  - removed `subschema #1` from the response body `allOf` list for the response status `422`
- **2026-10-30** `a0729c3c4a0b`: 2 info
  - added `subschema #1` to the response body `allOf` list for the response status `422`
  - removed `#/components/schemas/HTTPValidationError` from the response body `allOf` list for the response status `422`
- **2026-10-30** `db54363f5b0b`: 1 info
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/other_recurring_items` to the response with the `200` status
- **2026-10-29** `41fd94c1ba5c`: 1 info
  - added the optional property `lapsed_subscription` to the response with the `200` status
- **2026-10-21** `08aa1758cee4`: 6 info
  - added the new optional request property `interval`
  - added the optional property `annual_billing_available` to the response with the `200` status
  - added the optional property `billing_interval` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/plan_amount_interval` to the response with the `200` status
  - added the optional property `pending_billing_interval` to the response with the `200` status
  - added the optional property `plan_period_end` to the response with the `200` status
- **2026-10-21** `43519e4ad6d8`: 10 info
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/allowance_scope` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/imessage_lines` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/imessage_lines_used` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/imessage_personal_lines` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/imessage_router_lines` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/imessage_shared_lines` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/sms_allowance_per_org_per_cycle` to the response with the `200` status
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/voice_sec_allowance_per_org_per_cycle` to the response with the `200` status
  - response property `entitlements/anyOf[subschema #1: EntitlementsResponse]/sms_allowance_per_identity` deprecated
  - response property `entitlements/anyOf[subschema #1: EntitlementsResponse]/voice_sec_allowance_per_identity` deprecated
- **2026-10-14** `0d26e2e0266f`: 1 info
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/voice_packs` to the response with the `200` status
- **2026-09-16** `8fdfe5fd9d6b`: 2 info
  - added the optional property `entitlements/anyOf[subschema #1: EntitlementsResponse]/mail_custom_signatures_enabled` to the response with the `200` status
  - added the optional property `mail_custom_signatures_enabled` to the response with the `200` status

---

[Operation](https://skmtc.dev/inkbox/apis/inkbox-api/docs/api/v1/billing/change-plan/post.md) - [API](https://skmtc.dev/inkbox/apis/inkbox-api.md) - [Page](https://skmtc.dev/inkbox/apis/inkbox-api/changes/api/v1/billing/change-plan/post)