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    Michelle, 1Rebel UK

    "Really recommend Clean Digital, they've been a fantastic agency to work with and we've always been really impressed with the team and the results they produce."

    PPC conversion tracking & measurement

    Smart Bidding and reporting optimise toward whatever you measure, so the data has to be right. We set up deduplicated conversions, real values, offline imports and GA4 alignment, built with our data and analytics team, so your Google Ads run on accurate numbers. For Microsoft accounts, we also configure Microsoft UET and offline conversion tracking.

    Get a free tracking review
    Google Premier Partner 2026 badge£160M+ in ad spend managed

    What a tracking audit changes

    Reported by the platformEvery counted conversion, duplicates and junk included
    • Remove duplicatesThe same sale counted by two conversion actions
    • Remove junkSpam form fills and leads sales cannot use
    • Add off-site revenueDeals that closed in the CRM days after the click
    • Add real valuesMargin or deal size instead of one-size-fits-all counts
    Actual commercial outcomesThe number Smart Bidding should learn from and reporting should defend

    Most plateaued accounts have a measurement problem hiding underneath the bidding. Duplicate conversion actions inflate the totals, leads and sales have no value attached, revenue that closes off-site is invisible, GA4 and Google Ads disagree, and consent gaps quietly delete attribution. Automated bidding then optimises confidently toward the wrong thing. Fixing measurement is usually the highest-return work in an account.

    How we set up PPC conversion tracking

    Conversion tracking is a pipeline, and it breaks at its weakest stage. This is the full path we build and maintain, and what each stage protects.

    The click

    GCLID capture and Consent Mode v2

    Every ad click carries a Google Click ID. We capture it into forms and the CRM so the eventual sale can be traced back, and implement Consent Mode v2 so UK and EEA consent choices are respected without deleting your attribution.

    On the site

    Google tag, GTM and server-side tagging

    Conversion actions are audited and deduplicated so one sale counts once, with real values attached. Where browsers restrict tags, server-side tagging through GTM keeps measurement accurate rather than degrading quietly.

    Lost signal

    Enhanced conversions and call tracking

    Enhanced conversions use hashed first-party data, an email at enquiry or checkout, to recover conversions cookies now miss. Call tracking turns phone enquiries into measurable conversions instead of invisible ones.

    Off-site revenue

    Offline conversion imports from the CRM

    Leads that qualify, book or close days later are imported back against the original click. Bidding stops optimising for form fills and starts optimising for the leads that became revenue.

    Reconciliation

    GA4 and Google Ads alignment

    GA4 Key Events, Google Ads conversions and CRM totals are reconciled so the numbers agree, or the difference is explained. Budget decisions need one number everyone trusts.

    Six common conversion tracking problems

    All six are common, and each one changes how budget gets spent. A tracking audit checks your account against every row below.

    Duplicate conversions

    The same enquiry or sale is counted by two conversion actions, often a legacy tag plus a GA4 import.

    Cost: CPA looks better than it is, Smart Bidding learns from inflated data, and budget scales into a mirage.

    Weak primary conversions

    Page views, scroll events or soft micro-goals sit marked as primary conversions.

    Cost: Campaigns optimise toward cheap actions, so spend drifts to the traffic that performs the trivial action best.

    Off-site sales are invisible

    The platform sees the form fill but never learns which lead qualified, booked, enrolled or bought.

    Cost: Bidding treats a junk lead and a £50,000 deal as equals, and the reporting cannot connect spend to revenue.

    No values on conversions

    Every conversion counts as one, regardless of basket size, margin or deal value.

    Cost: Value-based bidding is impossible, so the account maximises volume where it should maximise revenue.

    Consent gaps delete data

    Consent Mode v2 is missing or misconfigured, so declined-consent clicks vanish from measurement entirely.

    Cost: Attribution develops holes, reported performance sinks below actual performance, and good campaigns get cut.

    Reports disagree

    Google Ads, GA4 and the CRM each count conversions differently: attribution windows, models and definitions all diverge.

    Cost: Every budget conversation starts with an argument about whose number is right instead of a decision.

    What we set up

    • Conversion action audit and deduplication
    • Real values and value-based bidding readiness
    • Offline conversion import for off-site sales
    • GCLID capture and CRM feedback loops
    • GA4 and Google Ads linking, Key Events, import
    • Enhanced conversions for web and leads
    • Consent Mode v2 for EEA compliance
    • Microsoft UET parity and server-side / GTM

    Results we actually manage

    From the same team

    28%YoY increase in lead quality· Arden University25%Of online purchases from a last-click paid touch point· Dobbies Garden Centres
    Get this level of review on your accountBrowse all case studies

    Common questions

    What teams ask about conversion tracking before they hand over an account.

    Why does my Google Ads conversion count differ from GA4?
    Almost always a setup difference: attribution models, conversion definitions, deduplication or consent handling. We link the platforms both ways, align Key Events and import, and resolve the discrepancies so both report on the same basis rather than leaving you guessing which to trust.
    What is offline conversion import and do I need it?
    It feeds the real outcome of a lead, qualified, booked or closed, back to Google Ads using the Google Click ID captured at enquiry. If your sales close off-site, you need it, otherwise Google optimises for form fills including the junk ones rather than revenue.
    Is Consent Mode v2 mandatory?
    For advertisers serving the UK and EEA, yes. Without the consent signals Consent Mode v2 sends, Google Ads cannot use the data and your attribution develops gaps. We implement it correctly so measurement stays compliant and Google can model recoverable conversions.
    What are enhanced conversions?
    A way to recover conversions that cookies alone now miss, using hashed first-party data you already collect, like an email at checkout or enquiry. Set up properly they improve the accuracy that automated bidding relies on, while respecting consent.
    How does better tracking improve performance if I do not change bids?
    Because Smart Bidding optimises toward whatever it measures. Deduplicated conversions, real values and recovered data change what the algorithm sees as good, so it reallocates spend toward genuinely valuable outcomes. The bidding strategy can stay the same while results improve.
    Do you handle measurement on Microsoft Ads too?
    Yes. We set up the Microsoft UET tag and conversion actions to parity with Google, including deduplication, values and offline imports, so each channel reports on the same basis and can be judged fairly.
    What is server-side tagging and do I need it?
    Server-side tagging routes measurement through a server container you control instead of relying only on browser tags, which ad blockers and browser privacy features increasingly restrict. Accounts with meaningful spend usually benefit: measurement gets more complete and more durable. We assess whether the gain justifies the setup for your account before recommending it.
    Can you track phone calls as conversions?
    Yes. Call tracking assigns trackable numbers so calls from ads are recorded as conversions, with duration or outcome rules to filter out wrong numbers and non-sales calls. For businesses that convert by phone, skipping this hides a large share of real conversions from bidding.

    Find out what your account is really measuring

    Get a free senior review of your conversion tracking and measurement, duplicate actions, missing values, off-site revenue and consent gaps, and what to fix before more budget goes in, from a Google Premier Partner managing £160M+ in ad spend.

    • Where budget produced no profitable return in the last 90 days
    • Whether your conversion tracking and values are reliable
    • How much of your performance is genuinely incremental vs demand you already had
    • Which campaigns are worth more budget and which to cut
    “A useful PPC review should make the next decision obvious: what to cut, what to protect, and what is worth more investment.”
    Fraser Smith, Chief Strategy Officer at Clean DigitalFraser Smith, Chief Strategy Officer, reviews every submission

    Free senior PPC review

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