Solved problems. Proven solutions.

Validate server-side events as a data pipeline, not just as a successful HTTP response. A 2xx response only proves the endpoint accepted the request. Use this sequence: 1. Define a stable event identifier at the business event level. A lead submission, order, booked appointment, or subscription should have one immutable ID that can be sent by browser and se…

Start by proving whether the linker parameter and GA4 client/session identifiers are surviving the domain transition. Do not begin by changing attribution settings. Implementation checklist: 1. Confirm both domains send to the same GA4 property and intended web data stream. A second measurement ID on the checkout domain can create a completely separate user…