Google Ads conversion tracking links website purchases, calls, app installs and offline sales back to the ads that drove them, as Google Ads Help describes. Your next step is to create your conversion actions and put the Google tag (gtag.js) on every page. Then opt into enhanced conversions. We cover that setup below.
TL;DR:
- Create separate conversion actions for distinct funnel stages, but choose only one or two Primary actions per goal so Smart Bidding gets clear signals.
- Use the Google tag when Google Ads is your only tag, or Google Tag Manager for several; add a conversion linker to preserve GCLID.
- Store each lead’s GCLID and upload offline outcomes within 90 days, with accurate timestamps and time zones; older clicks cannot be matched.
- From June 15, 2026, offline conversion imports move to the Data Manager API, and Google Ads API uploads are blocked; agencies should migrate integrations.
- Test tags with Tag Assistant and diagnostics, then compare results with your CRM, which remains the source of truth; retest after site changes.
Table of Contents
- Which conversion types can you track?
- How do you create a conversion action step by step?
- Should you tag with gtag.js or Google Tag Manager?
- What changed with enhanced conversions and Data Manager in 2026?
- How should you handle offline conversions?
- How do you verify, test and troubleshoot your tracking?
- What do privacy and consent mean for enhanced conversions?
- How do you read and analyse your conversion data?
- How can you keep tracking accurate and reduce discrepancies?
- How do you set up tracking for Search, Display and Video?
- How do attribution models change your reporting?
- How do you link Google Ads with Google Analytics?
- Can you track conversions across devices and platforms?
- Why do we push agencies and clients to fix tagging first?
- How can Fylde Digital help with setup, migration and audits?
- FAQ
- Sources
Which conversion types can you track?
Start by deciding what counts as a result for your business. Google separates conversions into four families, and you create a separate conversion action for each one you care about:
- Website actions: a purchase, a quote request or a newsletter sign-up on your site.
- App conversions: an install or an in-app action such as a booking.
- Phone calls: a call from an ad, or a call after someone clicks through to your site.
- Offline conversions: a sale closed in your CRM weeks after the original click.
Most small businesses benefit from more than one action. A “form submitted” action and a “sale closed” action describe different funnel stages, and each tells you something different. You then choose which ones are Primary, meaning Smart Bidding optimises towards them, and which stay Secondary for observation only.
If phone leads matter to you, a dedicated tracking number helps. This guide to identifying callers and reserving a memorable UK business number is useful background when you plan call forwarding for call tracking.
How do you create a conversion action step by step?
Work through this checklist in the order shown:
- Decide what you want to measure and give each action a clear name, such as “Quote form submit” or “Booking confirmed”.
- In Google Ads, go to Goals, then Conversions, then + Create conversion action.
- Choose your data source: the Google tag, Google Analytics, or an import.
- Pick a category and a conversion window that matches your sales cycle.
- If you use Analytics, bulk-create conversions from events. For web tags, use URL detection for simple page loads and code or CSS selectors where values change dynamically.
- Mark only the one conversion you want Smart Bidding to chase as Primary. Leave the rest as Secondary.
Pro Tip: Switch on auto-tagging, and check you hold Admin rights in Google Ads and Edit rights in Analytics before importing events, otherwise the bulk import will fail.
Our Google Ads setup guide for better leads covers account structure once your conversions are live.
Should you tag with gtag.js or Google Tag Manager?
Both work. The right choice depends on how many tags your site already runs.
- Google tag (gtag.js): the simplest path if Google Ads is your only tag. You paste one snippet sitewide and build conversion events from it.
- Google Tag Manager (GTM): better when you manage several tags, because you update everything from one container without touching site code. Tag Manager Help walks through deploying Google Ads conversion tags this way.
- Conversion linker: this tag sets first-party cookies and keeps the click identifier (GCLID) intact as visitors move between pages. Google recommends it because browsers keep restricting third-party cookies.
If you already use GTM, add the conversion linker and import Google’s suggested Ads configurations. Otherwise, the global site tag is the quickest route. Sitewide tagging matters because partial tagging leaves gaps that Smart Bidding then fills with guesses. Our GA4 ecommerce tracking guide gives the GTM steps for shops.
What changed with enhanced conversions and Data Manager in 2026?
The old split between enhanced conversions for web and for leads is gone. Google has merged them into a single account-level setting from April 2026, and existing users are migrated automatically.
The bigger deadline is for offline imports.
From 15 June 2026, offline conversion imports and enhanced conversions for leads uploads move to the Data Manager API and are blocked in the Google Ads API. Developer tokens that sent no request between January and June 2026 are not allowlisted for legacy access.
Here is what to do now:
- Opt into enhanced conversions at account level.
- Turn on user-provided data collection in your tag or GTM.
- Prepare a Data Manager connection for your lead uploads.
- Agencies should check that every API integration and developer token is active, as Google’s offline import guidance stresses, and move those pipelines to the new API.
How should you handle offline conversions?
Offline tracking turns a phone enquiry that becomes a signed job into a signal Google can learn from. The rules are strict but simple:
- Store the GCLID with every lead record. Google keeps click identifiers for up to 90 days, so older clicks cannot be matched.
- Include a conversion time and the correct time zone in every upload. Date formatting errors are a common cause of rejected rows.
- Use Data Manager where you can. API and SFTP connectors also exist, and uploading daily keeps Smart Bidding supplied with fresh outcomes.
- Add an order or transaction ID where relevant, so duplicate rows are removed rather than counted twice.
How do you verify, test and troubleshoot your tracking?
Never assume a tag works because it is installed. Check it with this routine:
- Open the Conversion diagnostics tab and the enhanced conversions diagnostics report for status warnings.
- Run a test conversion yourself using Google Tag Assistant and Chrome DevTools to confirm the tag fires.
- Fix the usual culprits: an unverified or inactive tag on a new setup, the wrong conversion source, a mismatched account, badly formatted dates, or a GCLID that is too old.
- Wait one or two conversion cycles, and allow time for enhanced conversions to show an effect.
- Compare Google Ads figures against your CRM. Your CRM sales are the source of truth.
What do privacy and consent mean for enhanced conversions?
Enhanced conversions use customer data, so the legal and technical groundwork comes first. Tell people clearly what data you collect, and check the applicable consent requirements, including Google’s EU user consent policy where it applies. You also accept the Google Ads Data Processing Terms.
On the technical side:
- Hash personal data with SHA256. Enhanced conversions for web prefer email as the match key. Normalise values before hashing and send only what you need.
- Respect Consent Mode, which affects whether ads cookies are collected.
- Before switching anything on, update your privacy notice, put consent prompts in place and document your data flows.
How do you read and analyse your conversion data?
Once data flows, resist the urge to stare at one headline number. Start in the Conversions columns and check which actions feed them. Your account default setting decides which conversions appear in the main Conversions column, so a Secondary action will not inflate it.
The metrics that matter most:
- Conversions and conversion value: volume and revenue attributed to your ads.
- Cost per conversion: your spend divided by results, the fastest way to spot waste.
- Conversion rate: the share of interactions that end in a result.
- Value per cost: how much value each pound of spend returns.
Segment these by campaign, device, network and conversion action. A campaign with a poor overall rate might hide one strong action and one that never fires. Compare against your CRM monthly, because Google Ads only sees what your tags and uploads tell it. Our guide on how to measure PPC success explains how to turn these figures into decisions, and our audit review shows where tracking gaps hide wasted spend.
How can you keep tracking accurate and reduce discrepancies?
Discrepancies between Google Ads, Analytics and your CRM are normal, but large ones point to a fault you can fix.
- Tag every page, not just the thank-you page, so the click identifier survives the whole journey.
- Fire each conversion once. A tag that triggers on page refresh, or two tags on one event, double counts.
- Keep one source per action. Counting the same sale from both an Analytics import and a Google tag duplicates it.
- Pass values properly. Dynamic order values need code or variables, not a fixed number.
- Upload offline data promptly and with accurate timestamps, so conversions land against the right click.
- Re-test after every site change. New checkout flows, cookie banners and redesigns are the most common tag breakers.
Differences in timing also explain gaps. Reporting dates can differ between tools, so check their date settings before comparing results. If you rebuild pages, brief your developers on tracking before launch, or ask us to review the new layout, since our web design team builds confirmation pages with measurement in mind.
How do you set up tracking for Search, Display and Video?
The conversion actions you create are shared across your account, but each campaign type needs a different emphasis.
Search: people searching have high intent, so measure the bottom of the funnel: form submissions, calls and purchases. Set these as Primary so bidding chases real leads.
Display: audiences are earlier in their thinking, and many conversions follow a view rather than a click. Keep a micro-conversion such as a key page view or a basket add as Secondary, then judge Display on how it assists your final actions.
Video: viewers rarely convert straight away. Track engaged views and later site visits as observation actions, and check how they contribute in your reports instead of expecting last-click sales.
Match each goal to the action that proves it. Lead generation wants forms and calls, ecommerce wants purchases with values, and local services often want calls and booking confirmations. Choose one or two Primary actions per goal, otherwise Smart Bidding receives conflicting signals. Our guides to PPC landing pages and planning PPC budgets help you shape what happens after the click.
How do attribution models change your reporting?
Attribution decides which touchpoint earns credit when a customer interacts with several ads before converting. Attribution settings determine how credit is assigned across touchpoints. Check which models are available in your account.
When comparing reports, consider whether attribution settings affect how credit is distributed across campaigns and keywords. A generic keyword that starts journeys looks weak under last click and stronger under data-driven attribution. If you compare periods, make sure the same model was applied to both, or the trend you see may be an artefact.
Smart Bidding also learns from the model you choose, so avoid changing it during a busy trading period. Give any change a few weeks to settle before judging campaigns, and keep notes on the date you switched so your future reports make sense. Because data-driven attribution relies on enough conversion data, accurate and complete tagging directly affects how well it works.
How do you link Google Ads with Google Analytics?
Linking the two gives you Google Ads cost data next to on-site behaviour, which neither platform shows alone. Our website analytics setup guide covers the basics, but the essentials are:
- Hold Admin access in Google Ads and Edit access in Analytics.
- Link the accounts in the Analytics admin area and enable auto-tagging in Google Ads.
- Mark the Analytics key events you want, then import them as Google Ads conversions, or bulk-create them as described earlier.
Decide which platform owns each conversion. If you import an Analytics event and also fire a Google tag for the same sale, you will count it twice. Importing is quicker for small teams, while native Google Ads tags usually give faster, more direct signals for bidding.
The payoff is richer analysis: you can see which campaigns bring visitors who stay, view several pages or return later, and build audiences from that behaviour. Expect small differences between the two platforms, as they attribute and time conversions differently. Treat Analytics as the story of behaviour and Google Ads as the engine for bidding, and read them together.
Can you track conversions across devices and platforms?
Customers rarely stick to one device. Someone might click your ad on a phone during a commute, then buy from a laptop that evening. Google Ads may connect journeys across devices, and enhanced conversions can use hashed first-party details such as an email address. The Data Manager route can be used to connect first-party data for conversion reporting.
Cross-platform tracking is where first-party data earns its keep. A sale completed by phone, in a shop or inside your CRM can be linked back to the original click through the stored GCLID and uploaded as an offline conversion. That closes the gap between your ads and revenue that never touched your website.
Be realistic about limits. Cross-device reporting and consent choices can affect what is observed, so reports may differ from your CRM. Aim for consistent, privacy-safe data collection rather than perfect precision, and treat modelled conversions as a reasonable estimate. Google’s own conversion tracking resource outlines the products and case studies behind this approach.
Why do we push agencies and clients to fix tagging first?
Our view is simple: tagging is the foundation, and everything else is decoration. A beautifully structured account fed incomplete conversion data will still bid badly, because Smart Bidding can only learn from what it sees. The clients who gain most are those who audit early, update sitewide tags, opt into enhanced conversions and verify the results before touching bids. A staged plan works: audit, tag update, enhanced conversions opt-in, then verification and reporting. It is manageable, and it protects your signals through the 2026 migrations.
— tibor
How can Fylde Digital help with setup, migration and audits?
We provide digital marketing services and report on the results in plain language. You can see everything we do on our services page. Our support covers:
- Regular reporting tied to leads and sales.
The next step is simple: audit, plan, implementation. Request a free Google Ads review and we will tell you what to fix first.
FAQ
How do you track conversions with Google Ads?
Create a conversion action under Goals, then Conversions, and choose a data source such as the Google tag, Google Analytics or an import. Add the tag sitewide and run a test conversion. Check the Conversion diagnostics tab to confirm it is recording.
What is the difference between GA4 and Google Ads conversion tracking?
Google Ads conversion tracking records actions attributed to ads and can be used to inform bidding. GA4 records behaviour across all traffic sources, and its key events can be imported into Google Ads. Counting the same action in both without choosing one source leads to duplicates.
How do you change conversion tracking in Google Ads?
Open Goals, then Conversions, and edit the relevant conversion action to change its category, window, value or Primary status. Update the tag in your site or GTM if the trigger needs to change. Retest afterwards and allow time for the data to settle.
How do you set up conversion tracking?
Decide what to measure, create the conversion action, install the Google tag or GTM sitewide with the conversion linker, and opt into enhanced conversions. Then verify with diagnostics and compare against your CRM.
