Adds assets to a campaign by VIN or asset ID, for campaigns whose membership is managed outside Samsara. Up to 5000 entries per request; the rate limit applies to this endpoint, not to the individual entries. Each entry is processed independently and the response reports a result per entry, in request order: created, alreadyPresent, unresolvedVin, unresolvedAssetId, invalid or overCap. A campaign holds at most 100000 items. Items are created in pending with sourceBasis api. An asset joins a campaign at most once, so requests are idempotent: an asset that already has an item, including a dismissed one, is reported as alreadyPresent and never re-added. Ingesting items never creates work orders or places holds. Not accepted for complete or cancelled campaigns.

<b>Rate limit:</b> 100 requests/min (learn more about rate limits <a href="https://developers.samsara.com/docs/rate-limits" target="_blank">here</a>).

To use this endpoint, select Write Campaigns under the Work Orders category when creating or editing an API token. <a href="https://developers.samsara.com/docs/authentication#scopes-for-api-tokens" target="_blank">Learn More.</a>

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{
  "data": [
    {
      "assetId": "281474976710655",
      "sourceRef": "recall-feed-2026-02-01:row-1042",
      "vin": "1FUJGHDV0CLBP8834"
    }
  ]
}

{
  "requestId": "1f7f5081-9f8e-4b68-8b85-97dbe4b46d7e",
  "responses": [
    {
      "assetId": "281474976710655",
      "message": "No asset in your organization has this VIN.",
      "result": "created",
      "status": 200
    }
  ]
}