---
issue: "011"
title: "updatePurchaseRequest sends PUT but backend only accepts PATCH"
severity: major
domain: purchase-request
labels: [frontend, bug]
status: open
created: 2026-05-29
source: Doc vs Code Audit 2026-05-29
---

# 🟠 updatePurchaseRequest sends PUT but backend only accepts PATCH

**Severity:** major
**Domain:** purchase-request
**Labels:** frontend, bug

## Description

`frontend/src/actions/marketplace.ts` (line ~71) calls `axiosInstance.put(endpoints.marketplace.requests.update)`. The backend registers `PATCH /marketplace/purchase-requests/:id` (routes.ts). Sending PUT results in 404/405 — edits to purchase requests silently fail.

## Current Behavior

Editing a purchase request from the buyer edit view sends `PUT /marketplace/purchase-requests/:id` → 404. The request is not updated.

## Expected Behavior

The action should use `axiosInstance.patch(...)`.

## Affected Files

- `frontend/src/actions/marketplace.ts` — `updatePurchaseRequest` function (verb: `put` → `patch`)

## References

- [Doc vs Code Audit Report](../09%20-%20Audits/Doc%20vs%20Code%20Audit%20Report%20-%202026-05-29.md) — Finding M18