`INVALID_PLAN`

HTTP 400

Something about the request must change

The admin plan value is not free or pro.

How to fix it (contract guidance)

Send exactly free or pro.

Observed recovery

Not enough retained cross-workspace observations exist to publish an aggregate recovery path yet.

Publication requires at least 3 distinct workspaces. This is withheld data, not evidence that no recovery happened.

Raised by

POST /api/admin/users/{userId}/plan

If you are an agent

The same facts, structured. Do not infer the fix from the prose above — use this.

{
  "code": "INVALID_PLAN",
  "httpStatus": 400,
  "meaning": "The admin plan value is not free or pro.",
  "fix": "Send exactly free or pro.",
  "example": null,
  "emittedBy": [
    "POST /api/admin/users/{userId}/plan"
  ],
  "links": {
    "contract": "/docs/openapi.json",
    "changelog": "/changelog",
    "blog": "/dispatches"
  },
  "guidanceSource": "contract-manifest",
  "observedResolution": {
    "code": "INVALID_PLAN",
    "source": "server-event-ledger",
    "scope": "current-retained-events",
    "correlationWindowHours": 24,
    "minimumDistinctWorkspaces": 3,
    "status": "insufficient-aggregate",
    "observations": null,
    "distinctWorkspaces": null,
    "path": null
  }
}

Other HTTP 400 errors

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