How fresh does the click id need to be?

A gclid is uploadable for a bounded window after the click — the kit names the current limit and includes a guard that skips conversions recovered from an older record, so the upload never silently rejects a batch.

Upload kit + failure modes · Builder's Library

The Offline-Conversion Upload Kit

Upload closed revenue back to Google Ads the way the API actually wants it — plus the six errors that silently drop your data.

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Smart Bidding is only as smart as the conversions you feed it. Feed it form fills and it optimizes for form fills; feed it closed revenue and it optimizes for revenue. The recipe explains why offline-conversion upload is the highest-leverage move in a Google Ads account; this kit is the upload itself — the query, the payload, and the errors nobody documents.

Most offline-conversion pipelines fail quietly. The upload returns success, the conversions never appear, and you find out a month later when the bidding has learned the wrong lesson. So the kit leads with the six failure modes — stale click ids, timezone drift, the wrong resource name — and how each one shows up before it costs you a month of spend.

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Unlock The Offline-Conversion Upload Kit.

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This kit ships with the playbook it came from: Google Ads API Offline-Conversion Upload — the OfflineConversionUploadGclidService end-to-end.

Questions

How fresh does the click id need to be?: A gclid is uploadable for a bounded window after the click — the kit names the current limit and includes a guard that skips conversions recovered from an older record, so the upload never silently rejects a batch.

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