Update a campaign (budget)

Campaign-level edits. Currently supports updating the CBO (Campaign Budget Optimization) budget. For ABO campaigns (where the budget lives on the ad set), use PUT /v1/ads/ad-sets/{adSetId} instead — this endpoint will return 409 with code BUDGET_LEVEL_MISMATCH. Meta-only for now. Other platforms return 501 Not Implemented.

import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.adcampaigns.updateAdCampaign({  path: {    campaignId: 'campaign_abc123',  },  body: {    platform: 'facebook',    budget: {      amount: 0,      type: 'daily',    },  },});console.log(data);

{
  "updated": 0,
  "budget": {
    "amount": 0,
    "type": "daily"
  },
  "budgetLevel": "campaign"
}

{
  "error": "Unauthorized"
}