SEM Insider · Tracking
Enhanced Conversions for Leads: 2026 Setup and Troubleshooting Guide
How to send qualified-lead and closed-deal data back to Google Ads using hashed form data, updated for the unified enhanced conversions setting introduced in 2026.
Updated September 22, 2026 · 10 min read
In this guide
What enhanced conversions for leads does
Enhanced conversions for leads is Google’s upgraded version of offline conversion import. When someone submits a lead form on your site, the Google tag captures user-provided data such as an email address or phone number, hashes it, and sends it to Google. Later, when that lead becomes qualified or closes in your CRM, you upload the outcome with the same hashed identifier. Google matches the two and attributes the offline conversion to the original ad click.
Step 1: Capture
The Google tag or Google Tag Manager collects email or phone from the form submission and hashes it.
Step 2: Qualify
The lead moves through your CRM: qualified, opportunity, closed won.
Step 3: Upload
You send the outcome with the hashed identifier through Data Manager or an API.
Step 4: Match
Google matches the identifier to the ad interaction and records the conversion.
Why it matters for bidding
Form fills are not all equal. Uploading qualified leads or closed deals lets Smart Bidding optimize toward the leads that actually become revenue instead of every form submission.
What changed in 2026
| Date | Change |
|---|---|
| April 2026 | Google Ads began accepting enhanced conversions data from website tags, Data Manager and API connections at the same time |
| June 2026 | Enhanced conversions for web and for leads were combined into a single feature with one on/off switch |
| June 15, 2026 | New API uploads for enhanced conversions for leads move to the Data Manager API; legacy Google Ads API upload paths are being blocked |
Accounts that had already accepted the customer data terms were migrated to the unified setting automatically. New accounts need to turn it on manually. The account-level setting lives under Goals → Settings → Customer data use.
Check your integration
If your CRM or middleware sends conversions through the older Google Ads API method, confirm with the vendor that it has moved to the Data Manager API. Then review upload diagnostics to confirm conversions are still being accepted.
Enhanced conversions for leads vs GCLID import
| Factor | GCLID-based offline import | Enhanced conversions for leads |
|---|---|---|
| Identifier | Google Click ID stored in a hidden form field | Hashed email or phone from the form |
| CRM changes needed | Store the GCLID against every lead | Store the email or phone you already collect |
| Breaks when | GCLID is lost through redirects, cross-domain forms or blocked parameters | Users submit data that does not match their Google account |
| Google’s recommendation | Still supported; include GCLID when available | Preferred method for new setups |
You do not have to choose one. Google recommends sending GCLIDs when you have them in addition to hashed user data, because both improve match accuracy.
Setup step by step
Turn on enhanced conversions
In Google Ads, go to Goals, then Settings, and open Customer data use. Accept the customer data terms if prompted and turn on enhanced conversions.
Choose your tagging method
Select Google Tag Manager, the Google tag, or the API. GTM is the most common choice for lead-gen sites because it can read form fields without code changes.
Capture user-provided data on the form
In GTM, create a User-Provided Data variable that reads the email and, if available, phone fields. Attach it to the Google Ads conversion tag or Google tag that fires on the form submission. Automatic detection works on some sites; manual CSS selectors or data layer values are more reliable.
Create offline conversion actions
Create conversion actions for the CRM stages you want to measure, such as Qualified Lead and Closed Won, using the import source for CRM or file uploads. Set the stage you want to bid on as primary.
Connect the upload source
Use Google Ads Data Manager to connect a supported CRM or scheduled file, or use the Data Manager API for custom integrations. Include hashed email or phone, conversion name, conversion time, and value where relevant.
Upload on a regular schedule
Send conversions daily if you can. Late uploads delay the signal to Smart Bidding and can miss the conversion window for that action.
Check diagnostics
After 48–72 hours, open the conversion action and review the enhanced conversions diagnostics. Look at coverage, match rates and any formatting warnings.
Data formatting rules
Match rates drop quickly when data is formatted inconsistently between the form capture and the upload. If you hash data yourself before upload, normalize it first.
| Field | Normalize before hashing | Example |
|---|---|---|
| Trim spaces, convert to lowercase | John.Smith@Example.com → john.smith@example.com | |
| Phone | Convert to E.164 format with country code, digits only after the plus sign | (415) 555-0132 → +14155550132 |
| First / last name | Trim spaces, lowercase, remove punctuation | O’Neil → oneil |
| Hash algorithm | SHA-256 | Hex-encoded output |
Let the tag hash when possible
When you use GTM or the Google tag, the tag normalizes and hashes data before sending it. Manual hashing is only needed for API or file uploads where you control the process.
Troubleshooting common errors
| Symptom | Likely cause | Fix |
|---|---|---|
| Diagnostics show low coverage | Tag fires before form fields are populated, or selectors point to the wrong fields | Fire on a confirmed submission event; test with GTM Preview |
| Uploads accepted but few conversions | Identifier formats differ between tag and upload | Normalize email and phone the same way in both places |
| Conversions appear days late | Uploads run weekly or manually | Automate a daily upload |
| Duplicate conversions | Same lead uploaded more than once | Use a unique order or transaction ID and enable deduplication |
| Upload errors after June 2026 | Integration still using the legacy API path | Move to the Data Manager API or a supported Data Manager connection |
| Wrong conversion counted in bidding | Form fill and offline stages both set as primary | Keep only the stage you want to optimize for as primary |
Consent and privacy
Only send user-provided data that you are allowed to share under your privacy policy and local law. In regions covered by consent requirements, make sure Consent Mode and your consent banner control when the tag can send data.
Implementation checklist
Enhanced conversions for leads checklist
- ☑Customer data terms accepted and enhanced conversions turned on
- ☑User-provided data captured on confirmed form submissions
- ☑GCLID also stored in the CRM when available
- ☑Offline conversion actions created for each CRM stage
- ☑Only the bidding stage set as primary
- ☑Upload source connected through Data Manager or the Data Manager API
- ☑Daily upload schedule running
- ☑Email and phone normalized identically in tag and upload
- ☑Diagnostics reviewed 48–72 hours after launch
- ☑Consent settings verified
Frequently asked questions
What is enhanced conversions for leads?
It is an upgraded form of offline conversion import. It uses hashed user-provided data, such as email or phone from your lead forms, to match offline outcomes like closed deals back to Google Ads clicks.
Do I still need GCLID?
Not strictly, but Google recommends including GCLIDs when you have them. Sending both hashed data and GCLIDs gives the best match accuracy.
What changed with enhanced conversions in June 2026?
Enhanced conversions for web and for leads were combined into one feature with a single on/off switch, and API uploads moved to the Data Manager API.
How long until I see results?
Diagnostics usually show data within 48 to 72 hours of the first tagged submissions and uploads. Bidding impact takes longer because Smart Bidding needs enough offline conversions to learn from.
Should I bid on form fills or qualified leads?
Bid on the deepest stage that still has enough volume. If qualified leads are too few for stable bidding, keep form fills as primary and use qualified leads as a secondary measurement until volume grows.
