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ChatGPT UTM Bug Fix Restores GA4 Attribution, but Marketers Must Repair the Gap

This story is from 2026-10-21. It is preserved in the archive; the latest stories are on the live feed.

OpenAI has fixed a ChatGPT outbound-link tracking bug that caused many visits to be misclassified as Direct traffic in Google Analytics 4. From roughly October 8 through October 15, 2026, links displayed in ChatGPT answers often lacked the utm_source=chatgpt.com parameter and did not reliably pass…

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  1. 2026-10-21 00:05 · DEV Community — AI
    ChatGPT UTM Bug Fix Restores GA4 Attribution, but Marketers Must Repair the Gap

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