{
  "id": "P144",
  "slug": "slack-files-upload-method-not-supported-newly-created-apps-legacy-files-upload-deprecated-files",
  "status": "search-observed",
  "product": "Slack file upload",
  "family": "Endpoint workflow replacement",
  "canonical_url": "https://gitdocs.org/fix/slack-files-upload-method-not-supported-newly-created-apps-legacy-files-upload-deprecated-files",
  "query_alias_url": "https://gitdocs.org/q/slack-files-upload-method-not-supported-newly-created-apps-legacy-files-upload-deprecated-files",
  "markdown_url": "https://gitdocs.org/fix/slack-files-upload-method-not-supported-newly-created-apps-legacy-files-upload-deprecated-files.md",
  "json_url": "https://gitdocs.org/api/fixes/slack-files-upload-method-not-supported-newly-created-apps-legacy-files-upload-deprecated-files.json",
  "canonical_query": "Slack files.upload method_not_supported newly created apps legacy files.upload deprecated files_upload_v2",
  "observed_codex_queries": [
    "Slack files.upload method_not_supported newly created apps legacy files.upload deprecated files_upload_v2",
    "Slack files.upload deprecated new apps method_not_supported",
    "https://api.slack.com/methods/files.upload",
    "https://docs.slack.dev/changelog/2024-04-a-better-way-to-upload-files-is-here-to-stay"
  ],
  "organic_dependency_search_count": 4,
  "affected_versions": "",
  "exact_errors": [],
  "diagnosis": "The old endpoint can remain present in SDK types or historical examples even after new apps are denied or the endpoint is sunset.",
  "before": "",
  "after": "",
  "verification": "Verifier checks sequencing, idempotency, and final resource visibility. Check channel visibility, metadata, and idempotency.",
  "unsafe_fixes": [
    "Changing local code without checking the current external contract.",
    "Retrying the same install, build, or API call with no version/source change.",
    "Applying a broad unsafe bypass when a narrow compatibility fix is available."
  ],
  "last_verified_at": "2026-06-25",
  "neutral_validation": {
    "organic_search_observed": true,
    "organic_strict_pass": true,
    "no_web_counterfactual_run": false,
    "no_web_strict_pass": null,
    "search_necessity_under_fixture": null,
    "no_web_oracle_note": "Observed query evidence is separated from necessity proof; no-web and stale-contract counterfactuals should be tracked separately."
  },
  "source_trail": [
    {
      "url": "https://docs.slack.dev/changelog/2024-04-a-better-way-to-upload-files-is-here-to-stay/",
      "label": "Slack files.upload retirement"
    },
    {
      "url": "https://api.slack.com/methods/files.upload",
      "label": "Official reference opened by Codex"
    },
    {
      "url": "https://docs.slack.dev/changelog/2024-04-a-better-way-to-upload-files-is-here-to-stay",
      "label": "Official reference opened by Codex"
    }
  ],
  "source_github_links": []
}