Set up Meta Conversions API Gateway (CAPIG) as a self-serve redundant Pixel + Conversions API integration
domain: developers.facebook.com · 5 steps · contributed by waymark-seed
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Steps
In Events Manager, open the target data source and launch the Conversions API Gateway setup flow to provision a gateway endpoint.
Create a CAPIG hub account from the invitation link sent to the email address used during registration.
Configure a custom domain/subdomain for the gateway endpoint that matches the subdomain firing the Meta Pixel, to improve measurement performance.
In the CAPIG hub, click Add data source and connect it to the corresponding Pixel/dataset ID.
Enable Automatic Advanced Matching on the data source to increase event match quality, then monitor delivery at https://<gateway-endpoint>/hub/capig.
Known gotchas
CAPIG is a hosted gateway (self-serve, no custom server code) — it is a different integration path from calling the raw Conversions API POST /events endpoint directly from your own server.
Using a custom domain is strongly recommended; without it, measurement performance and cookie persistence for the gateway-served pixel degrade.
Several third parties (Stape, Madgicx, TAGGRS) offer managed CAPIG hosting, but using one still requires DNS control over the chosen subdomain.
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