---
title: Product, offer, merchant, and inventory graph
code: G06
shelf: Graph systems
url: https://library.feedthejoe.com/graph-systems/g06-product-offer-merchant-and-inventory-graph/
markdown: https://library.feedthejoe.com/graph-systems/g06-product-offer-merchant-and-inventory-graph.md
author: Joseph W. Anady
publisher: THATDEVELOPERGUY LLC
status: "Researched: Not deployed"
summary: What is sold, by whom, with which current offer and availability?
published: 2026-09-12
reviewed: 2026-09-12
modified: 2026-10-14
release: 2026.09.12-g40
edition: 2026.09.12-g40
words: 149
sources:
  - graph:S30
  - graph:S31
cites:
  - https://library.feedthejoe.com/graph-systems/primary-source-register/
rights: © 2026 THATDEVELOPERGUY LLC. All rights reserved.
---

# G06 Product, offer, merchant, and inventory graph

## Question

What is sold, by whom, with which current offer and availability?

## Nodes

Product; Variant; Offer; Merchant; Inventory observation

## Relationship sketch

* offer → item
* offer → seller
* inventory observation → offer/version

## Evidence inputs

Actual catalog, identifiers, landing pages, feeds, dated price and stock records.

## Implementation

Separate an enduring product identity from a seller specific, time sensitive offer. Reconcile pages and feeds. Only use variant relationships supported by the actual catalog.

## Acceptance checks

* Offer currency and price agree with the reviewed source
* Availability has an observation time
* Variants are not merged solely because names resemble each other

## Do not infer

Your catalog graph is not direct control of Google Shopping Graph.

## Publication boundary

Approved catalog facts public; supplier and customer records private.

## Source basis

[S30](https://library.feedthejoe.com/graph-systems/primary-source-register/#S30), [S31](https://library.feedthejoe.com/graph-systems/primary-source-register/#S31). See Research/sources.json. Sources support the primitives or named technology. The organization, labels, actions, and acceptance contracts in this catalog are this library's design, not claimed provider requirements.