This page shows you how to resolve issues that you might encounter when using Eventarc Advanced.
HTTP 503 Service Unavailable errors
If you encounter an HTTP 503 Service Unavailable error for a pipeline that
routes messages to a Google destination using a DNS address—for example,
Cloud Run, Pub/Sub, Workflows, or
another Eventarc Advanced bus—make sure that
Private Google Access is enabled on the
subnet used in the network attachment; otherwise, the DNS address can't be
resolved.