What is Google Ads conversion tracking?
Google Ads conversion tracking is a measurement system that records when a user clicks your ad and then completes a valuable action on your website — a purchase, form submission, phone call, or other defined goal. This data is reported in Google Ads and used by Smart Bidding algorithms to optimise your bids and budget allocation toward the users and keywords most likely to generate conversions.
What is the difference between a conversion and a key event in GA4?
In GA4, "key events" (previously called conversions) are events you mark as important within GA4 for reporting purposes. Google Ads conversions are specifically configured conversion actions within your Google Ads account that Smart Bidding uses for optimisation. You can import GA4 key events as Google Ads conversions, but they can also be tracked directly via the Google Ads tag — the latter often provides more reliable data for Smart Bidding.
What are Enhanced Conversions and do I need them?
Enhanced Conversions is a Google Ads feature that supplements your standard cookie-based conversion tracking by hashing and sending first-party customer data (email, phone number, name, address) from your confirmation pages to Google. This allows Google to match conversions that were missed due to ad blockers, cookie restrictions, or cross-device journeys. For most businesses, Enhanced Conversions recovers 5–15% of previously unattributed conversions.
How does Smart Bidding use conversion data?
Smart Bidding strategies (Target CPA, Target ROAS, Maximise Conversions, Maximise Conversion Value) use your conversion history, conversion values, and signals about individual auctions to set the optimal bid for each search query in real time. The more complete and accurate your conversion data, the better Smart Bidding performs. Missing or duplicate conversion data directly degrades Smart Bidding efficiency.
What is offline conversion import and when do I need it?
Offline conversion import allows you to feed the results of your sales process — CRM deals won, phone sales completed, in-person consultations closed — back into Google Ads as conversion data. This is essential for B2B businesses and service companies where the sales cycle continues offline after the initial online lead. Without it, Smart Bidding optimises for lead form submissions rather than actual sales.
How long does it take to see Smart Bidding improve after fixing conversion tracking?
Smart Bidding typically requires 30–50 conversions in a 30-day window to exit the "learning" phase and perform reliably. After fixing broken or incomplete conversion tracking, you may see an initial period of data accumulation before Smart Bidding recalibrates. Most accounts see measurable performance improvement within 2–4 weeks of implementing accurate conversion tracking.
Can I track phone calls from Google Ads?
Yes. Google Ads supports three types of call tracking: calls directly from call extensions and call-only ads (using Google forwarding numbers), calls to a phone number on your website (using dynamic number insertion), and imported call conversions from a third-party call tracking platform. We configure all applicable types based on how your customers contact you.
What is the Google Ads Conversion Linker and why is it needed?
The Google Ads Conversion Linker tag (implemented via GTM) stores the Google Click ID (GCLID) from ad clicks in a first-party cookie on your domain. This GCLID is then read by conversion tags when a user converts, attributing the conversion back to the correct ad click. Without the Conversion Linker, Google Ads cannot match conversions to the clicks that generated them — conversion data will appear but attribution to campaigns and keywords will be missing or incorrect.
Should I use "Every" or "One" conversion counting?
"One" conversion counting records at most one conversion per ad interaction within the conversion window — appropriate for leads, where a single user submitting a form multiple times should only count once. "Every" conversion counting records every conversion — appropriate for purchases, where a single user making multiple purchases should each be counted as a separate conversion and revenue event.
What is a conversion window in Google Ads?
The conversion window defines how long after an ad click or impression a conversion can be attributed to that ad interaction. The default is 30 days for clicks, but it can be extended up to 90 days. For businesses with longer consideration cycles — high-ticket purchases, B2B services — extending the conversion window ensures you capture all the conversions your ads actually drove.