# POST /sell/marketing/v1/ad_campaign/{}/launch stops working

Calls to POST /sell/marketing/v1/ad_campaign/{id}/launch on eBay API stopped working on March 31, 2026.

## What to use instead

Create campaigns using createCampaign with POST /sell/marketing/v1/ad_campaign, which starts them on their start date, or resume an existing one using resumeCampaign.

- API: eBay API (api.ebay.com)
- Kind: Endpoint removal
- Takes effect: March 31, 2026
- Calls after that day: fail
- Calls it hits: `POST /sell/marketing/v1/ad_campaign/{id}/launch`
- Source: [Announcement](https://developer.ebay.com/develop/api/marketing-api/release-notes)
- Verified: November 6, 2026, against eBay API's own pages
- Page: https://www.okapi.bot/providers/ebay-api/breaking-changes/post-sell-marketing-v1-ad-campaign-launch-stops-working/

## eBay API's words

> The setupQuickCampaign and launchCampaign methods have been decommissioned and removed from the campaign resource.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent