---
issue: "014"
title: "select-offer sends no per-seller socket events or notifications to winning/losing sellers"
severity: major
domain: seller-offer
labels: [backend, missing-feature]
status: open
created: 2026-05-29
source: Doc vs Code Audit 2026-05-29
---

# 🟠 select-offer sends no per-seller socket events or notifications to winning/losing sellers

**Severity:** major
**Domain:** seller-offer
**Labels:** backend, missing-feature

## Description

`POST /api/marketplace/purchase-requests/:id/select-offer` (routes.ts lines ~1300-1438) emits only a single `purchase-request-update` event to the request room with `eventType: 'offer-selected'`. It does NOT:
- Call `notifyOfferAccepted` for the winning seller
- Call `notifyOfferRejected` for losing sellers
- Emit `seller-offer-update` events to individual seller rooms

These notifications only fire when using `PUT /offers/:id/accept` or `PUT /offers/:id/status` (via `SellerOfferService.updateOfferStatus`), not via the `select-offer` path used by the frontend.

## Current Behavior

Buyer selects an offer → winning seller gets no real-time notification → losing sellers get no notification.

## Expected Behavior

When a buyer selects an offer:
1. Winning seller receives a `seller-offer-update` event and a push notification
2. Losing sellers receive a `seller-offer-update` event and a notification

## Affected Files

- `backend/src/routes/routes.ts` — `select-offer` route handler, missing `notifyOfferAccepted` and `notifyOfferRejected` calls

## References

- [Doc vs Code Audit Report](../09%20-%20Audits/Doc%20vs%20Code%20Audit%20Report%20-%202026-05-29.md) — Finding M25