Check explainer
Server-side event APIs
Server-to-server conversion APIs (Meta CAPI, TikTok Events API) deliver attribution even without cookies.
- note
- ok
What we check
Detects server-to-server conversion APIs: Meta CAPI, TikTok Events API, LinkedIn CAPI, Enhanced Conversions.
Why it matters
Server-to-server conversion APIs (Meta CAPI, TikTok Events API) deliver attribution even without cookies.
Common causes
- Paid campaigns run, but conversion measurement hangs entirely on the browser pixel.
- CAPI was activated in the ad account but sends without a consistent event_id, conversions count twice or get discarded.
- Enhanced Conversions are on in the Google Ads account, but the hashed fields never come out of the tag.
- The site runs no paid campaigns, then the finding is expected and not an error.
How to fix it
If you run paid performance: enable Meta CAPI or Enhanced Conversions alongside the pixel/tag.
What does a failing Server-side event APIs finding mean?
Server-to-server conversion APIs (Meta CAPI, TikTok Events API) deliver attribution even without cookies. If you run paid performance: enable Meta CAPI or Enhanced Conversions alongside the pixel/tag.
How do you fix Server-side event APIs?
If you run paid performance: enable Meta CAPI or Enhanced Conversions alongside the pixel/tag.