Why Google Ads isn't seeing your offline conversions from HubSpot

The 7 most common causes, and how to check each one

1. 01

   The click ID never reaches HubSpot

   Google adds gclid to the landing URL when auto-tagging is on. HubSpot stores it in the Google ad click id property (hs_google_click_id). If auto-tagging is off, a redirect strips the parameter, or the form drops it, there is nothing to match on. Clicks from some iOS campaigns carry gbraid or wbraid instead of gclid. HubSpot's documentation only covers gclid, so keep the other two in your own properties with hidden fields if you want to upload them.

   How to check

   1. 01In Google Ads, open Admin > Account settings and confirm Auto-tagging is on.
   2. 02Add ?gclid=capture-test to a landing page URL, submit a form with a new email address and check the contact's Google ad click id property.
   3. 03Build a contact view: Original Source is Paid Search, Google ad click id is unknown. Those contacts can only be matched by hashed contact data.
2. 02

   The HubSpot conversion event is missing or newer than the conversions

   HubSpot sends lifecycle stage changes to Google Ads through ad conversion events, set up on a connected Google Ads account. Only stage changes that happen after you create the event are sent, and a contact needs either a Google ad click id or contact data you agreed to share. Anything that moved stage before the event existed will never reach Google.

   How to check

   1. 01In HubSpot, go to Marketing > Ads, open the ad conversion events for your Google Ads account and confirm an event exists for each stage you expect.
   2. 02Compare each event's creation date with the dates of the conversions you are missing.
   3. 03Check the Google Ads account is still connected in HubSpot's ads settings and the connection shows no errors.
3. 03

   Lifecycle stage mapping does not match how sales works

   The event fires when a contact enters the mapped lifecycle stage. If sales qualifies leads on deals and never touches lifecycle stage, the event never fires. If a workflow jumps contacts straight past the mapped stage, test with one contact whether the event fires before you rely on it.

   How to check

   1. 01Count contacts with a Date entered Sales Qualified Lead (hs_v2_date_entered_salesqualifiedlead) in the last 30 days, or the date property for whichever stage you mapped.
   2. 02Compare that count with the conversions Google Ads shows for that action over the same click dates.
   3. 03Ask sales which field they actually update when a lead qualifies. Map the event to that.
4. 04

   Enhanced Conversions for Leads is off or not matching

   Without a click ID, Google can only match a lead by hashed email or phone through Enhanced Conversions for Leads. That needs enhanced conversions turned on in Google Ads, Google's data terms accepted, and HubSpot set to share contact data on the conversion event. Matching works best when the Google tag on your site also sends the hashed email at form submit, so Google has both sides.

   How to check

   1. 01In Google Ads, open Goals > Settings and confirm enhanced conversions is on and the data terms are accepted. Since 2026, one switch covers both web and leads.
   2. 02In the HubSpot conversion event, confirm email (and phone, if you collect it) is selected for sharing.
   3. 03Open the conversion action in Google Ads and read its Diagnostics tab for enhanced conversion match and coverage warnings.
5. 05

   The conversion action is set up wrong in Google Ads

   A secondary conversion action only shows in the All conv. column and is not used for bidding, unless it is part of a custom goal. Counting set to Every counts the same lead several times. A click-through conversion window shorter than your sales cycle rejects uploads for older clicks. No value, or the same value for every stage, gives bidding no reason to prefer a customer over a form fill.

   How to check

   1. 01In Goals > Conversions > Summary, open the action and check Primary or Secondary, Count, Click-through conversion window and Value.
   2. 02In the campaigns view, add the Conversions and All conv. columns and segment by Conversion action. A conversion only in All conv. is secondary.
   3. 03Set Count to One for lead and pipeline stages unless you have a specific reason not to. If you upload gbraid or wbraid, Google requires Count set to Every.
6. 06

   Uploads fall outside Google's time windows

   Google does not import offline conversions uploaded more than 90 days after the click, or more than 63 days for Enhanced Conversions for Leads. A new conversion action needs a few hours before it accepts uploads, and imported conversions take about 3 hours to show. They are reported against the click date, not the upload date. In a long B2B sales cycle, a stage like Customer can land too late to ever count.

   How to check

   1. 01For recent customers in HubSpot, measure the days between first visit and the mapped stage date. Anything near or past 63 days needs an earlier stage.
   2. 02Review conversions for a date range at least a week old, not yesterday, because recent clicks keep filling in.
   3. 03In Google Ads, check Goals > Conversions > Uploads for upload history, then open the offline data diagnostics from the conversion action's status in Goals > Summary and look for errors such as expired or too-recent clicks.
7. 07

   Consent signals are missing for EEA, UK and Swiss users

   Google requires consent signals for users in the EEA, the UK and Switzerland. ad_user_data controls whether user data can be sent to Google for advertising. If your Consent Mode setup sends it as denied, or never sends it, conversions from those users may not be attributable. HubSpot's Google Ads conversion events have their own consent setting: you pick the contact property and value that records consent, and Google then only uses contacts with consent for measurement and optimization.

   How to check

   1. 01Open Tag Assistant on your site, accept the banner and check the consent state shows ad_user_data as granted.
   2. 02Repeat after declining and confirm it switches to denied. A value that never changes means the banner is not wired to Consent Mode.
   3. 03Check the conversion action's Diagnostics tab for consent-related warnings.

When to get help

If click IDs are missing, stages do not match how sales works, or your sales cycle is longer than Google's upload windows, this needs more than a settings change. Offline conversions covers capturing click IDs, mapping the right stages, setting up the conversion actions and checking the data actually lands in Google Ads.

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