CEXT-6126: Product stock validation webhook use case

[ryanjcohen]

Purpose of this pull request

This pull request (PR) adds documentation for a product stock validation webhook use case.

Affected pages

• ...

Links to Magento Open Source code

• ...

whatsnew
Added the topic Products: Validate stock webhook use case. This topic describes how to create a webhook that calls a third-party inventory management system to check whether the requested quantity is available.

[github-actions]

🔍 Linter Report

Click to expand full report

═══════════════════════════════════════════════════════════════
                     LINTER REPORT
═══════════════════════════════════════════════════════════════

Generated: 2026-06-24T20:14:00.978Z
Mode: Full Linting (all rules + dead links check)
Target Directory: /home/runner/work/commerce-extensibility/commerce-extensibility
Skipped Rules:
  - check-frontmatter → src/pages/_includes

───────────────────────────────────────────────────────────────

Files to process: 2

───────────────────────────────────────────────────────────────
📄 FILE: src/pages/config.md
───────────────────────────────────────────────────────────────
  ⚠️  WARNING
    Location: Line 1:1
    Message: Missing frontmatter section - add --- at the beginning with title and description
    Rule: check-frontmatter

  ⚠️  WARNING
    Location: Line 5:7
    Message: Unexpected redirecting URL `https://developer.adobe.com/commerce/docs`, expected final URL `https://developer.adobe.com/commerce/docs/`
    Rule: no-dead-urls

  ⚠️  WARNING
    Location: Line 88:11
    Message: Unexpected redirecting URL `https://experienceleague.adobe.com/docs/commerce/cloud-service/tutorials/shipping-method-extension.html`, expected final URL `https://experienceleague.adobe.com/en/docs/commerce/cloud-service/tutorials/shipping-method-extension`
    Rule: no-dead-urls


═══════════════════════════════════════════════════════════════
                        SUMMARY
═══════════════════════════════════════════════════════════════

  📁 Files processed:    2
  📄 Files with issues:  1
  ❌ Total errors:       0
  ⚠️  Total warnings:     3
  📋 Total issues:       3

Result: ⚠️  PASSED WITH WARNINGS - No fatal errors

═══════════════════════════════════════════════════════════════

---

This comment was automatically generated by the linter bot.

[github-actions]

🔍 Linter Report

Click to expand full report

═══════════════════════════════════════════════════════════════
                     LINTER REPORT
═══════════════════════════════════════════════════════════════

Generated: 2026-06-25T14:02:48.087Z
Mode: Full Linting (all rules + dead links check)
Target Directory: /home/runner/work/commerce-extensibility/commerce-extensibility
Skipped Rules:
  - check-frontmatter → src/pages/_includes

───────────────────────────────────────────────────────────────

Files to process: 2

───────────────────────────────────────────────────────────────
📄 FILE: src/pages/config.md
───────────────────────────────────────────────────────────────
  ⚠️  WARNING
    Location: Line 1:1
    Message: Missing frontmatter section - add --- at the beginning with title and description
    Rule: check-frontmatter

  ⚠️  WARNING
    Location: Line 5:7
    Message: Unexpected redirecting URL `https://developer.adobe.com/commerce/docs`, expected final URL `https://developer.adobe.com/commerce/docs/`
    Rule: no-dead-urls

  ⚠️  WARNING
    Location: Line 88:11
    Message: Unexpected redirecting URL `https://experienceleague.adobe.com/docs/commerce/cloud-service/tutorials/shipping-method-extension.html`, expected final URL `https://experienceleague.adobe.com/en/docs/commerce/cloud-service/tutorials/shipping-method-extension`
    Rule: no-dead-urls


═══════════════════════════════════════════════════════════════
                        SUMMARY
═══════════════════════════════════════════════════════════════

  📁 Files processed:    2
  📄 Files with issues:  1
  ❌ Total errors:       0
  ⚠️  Total warnings:     3
  📋 Total issues:       3

Result: ⚠️  PASSED WITH WARNINGS - No fatal errors

═══════════════════════════════════════════════════════════════

---

This comment was automatically generated by the linter bot.