---
title: "Changes to Upload an appendix for a customer invoice"
method: POST
path: "/api/external/v2/customer_invoices/{customer_invoice_id}/appendices"
---

# Changes to Upload an appendix for a customer invoice

`POST /api/external/v2/customer_invoices/{customer_invoice_id}/appendices`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `871f863307e5`: 1 info

## Changes

- **2026-11-03** `871f863307e5`: 1 info
  - added the new optional `header` request parameter `X-Company-Id`

---

[Operation](https://skmtc.dev/pennylane/apis/company-v2/docs/api/external/v2/customer_invoices/:customer_invoice_id/appendices/post.md) - [API](https://skmtc.dev/pennylane/apis/company-v2.md) - [Page](https://skmtc.dev/pennylane/apis/company-v2/changes/api/external/v2/customer_invoices/:customer_invoice_id/appendices/post)