If you’re tracking phone calls or walk-in sales in Google Ads and uploading them back into the system, there’s a seven-day limit you probably didn’t know about. Offline conversions that arrive in Google Ads more than seven days after the event never reach the data-driven attribution model, while standard reporting columns record them in full.
It was spotted by Hana Kobzova and carried into wider circulation by Adriaan Dekker, a Google Ads consultant, in a LinkedIn post on August 22, 2026. The rule isn’t new, it’s just documented in a way most people miss.
The problem is simple. If someone clicks your ad on Monday, calls you on Wednesday, and you upload that conversion on the following Thursday (10 days later), it will show up in your reports. But Smart Bidding will ignore it. Your attribution model will ignore it. Your campaign will optimise as if that lead never happened.
For a plumber running Search ads or a physio tracking phone bookings, that’s a real gap between what you see and what Google uses to spend your money.
Why this matters if you’re running lead gen
Most small businesses don’t upload conversions in real time. Your CRM records the enquiry. A few days later someone qualifies the lead. A week later you send it to Google Ads. By then it’s too late.
Conversions uploaded after the window still appear in standard reports, but they are "ignored by the attribution engine". That means two things go wrong. First, your campaign performance looks better in the reports than it actually is to the bidding algorithm. Second, Smart Bidding is working with incomplete data, so it can’t optimise properly.
If your sales cycle is slow or your CRM workflow is manual, this will hurt you.
If your sales cycle is slow or your CRM workflow is manual, this will hurt you.
What to do this week
Don’t change the conversion date
Should I change the recorded conversion date to avoid the cutoff? No. The offline conversion can’t happen before the ad click. Google checks the timestamp. If you backdate a conversion to fit inside the window but it happened after the click in a way that breaks the timeline, it won’t import at all.
The fix isn’t to lie about when it happened. The fix is to upload it faster or track something earlier in your process.
Prompted by PPC Land.