---
title: "Retrieve approval summary for a specific invoice"
method: GET
path: "/invoices/{id}/approval-summary"
tags: ["invoices"]
---

# Retrieve approval summary for a specific invoice

`GET /invoices/{id}/approval-summary`

Returns consolidated approval state for a single invoice: policy tiers, manual approvers, per-approver completion, and a user lookup map. Use to render approval status without fetching the full approval chain graph.

## Path parameters

- `id` string, required

## Headers

- `Authorization` string, required
- `X-Api-Key` string, required
- `X-API-Version` string

## Response `200`

Successful response with approval summary

- InvoicesGetInvoicesIdApprovalSummaryResponse200 — Empty response body

## Other responses

- `400` — Bad request - Invalid parameters or request format
- `401` — Unauthorized - Authentication required or invalid credentials
- `403` — Forbidden - Access denied or insufficient permissions

---

[API](https://skmtc.dev/ottimate/apis/api-reference.md) · [All operations](https://skmtc.dev/ottimate/apis/api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/ottimate/api-reference/revisions/ba91ff4c6969/schema)