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Meta Advanced Matching for Stronger Event Matching
We configure Meta Advanced Matching so your pixel and server events carry hashed customer details such as email, phone and name. This helps Meta connect conversions to ad viewers. Suited to advertisers whose events fire correctly but show weak event match quality.
Advertisers whose Meta events fire correctly but show low event match quality
- Manual Advanced Matching on the pixel
- Normalized, hashed customer fields
- External ID for logged in users
- Match quality reviewed per event
Free 30-minute tracking audit • No obligation
Events That Fire but Do Not Match Anyone
An event without customer information is hard for Meta to link to a person. Automatic matching catches some fields, but it often misses data from checkouts, forms and logged in sessions.
Automatic Matching Misses Fields
Automatic Advanced Matching reads visible form fields, so it can miss data on custom checkouts, embedded forms and multi-step flows.
Badly Formatted Data
Phone numbers without country codes, emails with capital letters or spaces, and unhashed values reduce or block matching.
No Identifier After Login
Returning customers who are logged in are not identified with an external ID, so repeat purchases match less reliably.
What We Add to Your Meta Events
We pull customer details from the data layer at the moments they are known, format them the way Meta specifies and attach them to both browser and server events.
Manual Advanced Matching
Customer fields passed to the pixel init or event call instead of relying on automatic detection alone.
Customer Data Layer Variables
Email, phone, name, city, state, zip and country exposed in the data layer after checkout or form submit.
Normalization Rules
Lowercasing, trimming, removing symbols and adding country codes to phone numbers before hashing.
SHA-256 Hashing
Values hashed in GTM or on the server so plain text customer data is not sent to Meta.
External ID Mapping
A stable customer or CRM ID sent as external_id on both pixel and CAPI events.
Consent Rules for Customer Data
Customer fields only attached when your consent setup allows it.
How Customer Data Improves an Event Match
Customer details captured on your site are cleaned, hashed and attached to the event, giving Meta more signals to match the conversion to an account.
Email, phone and name at checkout or form
Fields exposed with the conversion event
Formatted to spec, then SHA-256 hashed
Pixel and CAPI carry the hashed fields
Event linked to a Meta account
What's Included in Advanced Matching
Clear deliverables, documented and validated before handover.
Match Quality Baseline
We record current event match quality and which customer parameters each event sends today.
Customer Data Layer Spec
A specification for your developers or platform showing which fields to expose and when.
Normalization and Hashing Logic
GTM variables or server code that format and hash every field to Meta's requirements.
Privacy and Consent Controls
Customer data tied to consent status and limited to fields you collect lawfully.
Parameter QA
Each event inspected in Test Events to confirm the expected hashed parameters are present.
Matching Reference
Documentation of fields, formats, sources and consent rules for future maintenance.
From Audit to Validated Data
How a Advanced Matching project runs, step by step.
Audit
Audit current customer parameters and event match quality in Events Manager.
Strategy
Decide which customer fields to send, where they come from and consent rules.
Implementation
Implement data layer fields, normalization, hashing and external ID mapping.
Testing
Test hashed parameters on pixel and CAPI events in the Test Events tool.
Validation
Validate match quality changes per event and document the configuration.
Platforms and Tools We Work With
The tools involved in a typical Advanced Matching implementation.
Advanced Matching fields
Customer information
Event match quality
Hashing variables
Data sharing rules
Advanced Matching FAQ
Straight answers before you book. Still have a question? Talk to us directly.
What is the difference between automatic and manual Advanced Matching?
Automatic matching lets the pixel read form fields it detects on the page. Manual matching means you pass customer values to the pixel directly from your own data. Manual matching is more dependable on custom checkouts, embedded forms and single page apps, so we usually set it up alongside automatic matching.
Which customer fields does Meta accept?
Meta accepts email, phone, first name, last name, date of birth, gender, city, state, zip code, country and external ID, plus technical fields like fbp, fbc, IP address and user agent on server events. We send the fields you actually collect and are allowed to share.
Is sending hashed customer data compliant?
Hashing protects the raw values in transit, but compliance also depends on your privacy policy, consent setup and the regions you serve. We connect the data to your consent tool and follow the guidance of your legal team.
Does Advanced Matching need the Conversions API?
No. Advanced Matching works on the pixel alone. Adding the same fields to Conversions API events usually gives Meta a more complete picture, so we apply the same field logic to both when you run CAPI.
How will we know if matching improved?
Events Manager shows event match quality per event and lists which customer parameters are received. We record these before the work and review them after, so you can see what changed without relying on estimates.
Services That Work Well Together
Tracking is a system. These services are often delivered alongside this one.
Server events sent to Meta with event IDs, deduplication and customer data for stronger event match quality.
Hashed first-party data sent with conversions to recover matches that cookies miss.
A documented dataLayer spec and build that gives GTM stable, structured values for every event.
Stop Guessing. Start Measuring.
Get a professional review of your tracking setup and discover where your marketing data may be leaking.
Free 30-minute review • No obligation