If you're running ads on Meta, Google, TikTok, or any other ad platform, there's a number quietly shaping how well your campaigns perform. It's called Event Match QualityWhat it means: Event Match Quality is a score that Meta (Facebook) gives to each type of conversion event you send from your website. It measures how well the data you send -- things like email addres... on Meta, and every major ad platform has its own version. It measures how well the conversion data you send back matches to real people in their system.
And here's the thing most WordPress site owners don't realize: this score directly affects how much you pay per conversion and how effectively the ad platform can optimize your campaigns.
I've been building conversion tracking tools for WordPress for years, and this is one of the most impactful improvements I've seen. Not a new bidding strategy. Not a creative tweak. Just sending better data back to the ad platforms so they can do their job.
What Is Event Match Quality (and Why Should You Care)?
When someone clicks your ad, visits your site, and completes a purchase or fills out a form, that conversion event needs to find its way back to the ad platform. The platform then tries to match that event to the person who clicked the ad. The better it can match, the smarter it gets at finding more people like your buyers.
Meta calls this score "Event Match Quality" and rates it from 1 to 10. According to Meta's own documentation, a score below 6 means your events aren't matching well enough for the platform to optimize effectively. They recommend aiming for a score above 6, with scores of 8-10 being ideal.
Google Ads has a similar concept with their Enhanced Conversions feature, where sending hashed first-party customer data alongside your conversion tags recovers conversions that would otherwise go untracked. Google has reported that advertisers using Enhanced Conversions see an average of 5% more conversions captured in their reporting.
TikTok, Pinterest, Microsoft Ads, and others all have their own matching systems that work on the same principle: the more customer data you send with a conversion event, the better the platform can attribute that conversion and optimize future ad delivery.
The concept is simple, even if the technical details can get complex. More data parameters equal higher match rates. Higher match rates equal better optimization. Better optimization equals lower cost per acquisition and higher return on ad spend.
The Customer Data That Actually Matters
So what data are we talking about? Ad platforms don't just want to know that "someone" converted. They want to know exactly who converted so they can match it to a user profile in their system.
Here are the customer data parameters that improve matching, roughly in order of impact:
Conversion Bridge automatically extracts, normalizes, and hashes customer data from 67 WordPress plugins and sends it to any of the 8 supported ad platforms. Learn about enhanced matching.
Email address is the single most valuable parameter. It's the primary identifier most platforms use for matching. Nearly every conversion involves an email, whether it's a purchase, form submission, or account signup.
Phone number is the second most impactful. Many people use the same phone number across platforms, so it provides a strong secondary match signal. According to Meta's customer data parameters guide, phone number is one of the key parameters that directly improves Event Match Quality.
First name and last name help confirm matches. On their own they're not unique enough, but combined with email or phone, they strengthen the match confidence significantly.
City, state, zip code, and country round out the picture. These geographic parameters add additional matching signals. They're especially valuable for common names where the platform needs more context to confirm it's the right person.
Each additional parameter you send increases the probability of a successful match. Think of it like fingerprints: one partial print might not be enough for identification, but combine it with several other partial prints and you get a confident match.
Why Most WordPress Sites Send Incomplete Data
Here's where it gets frustrating. Your WordPress site almost certainly collects most of this customer data already. When someone places a WooCommerce order, the checkout form captures their email, name, phone number, billing address, city, state, zip, and country. When someone fills out a contact form, you're getting at minimum their email and name, often their phone number too. Membership signups, donation forms, booking systems, they're all collecting this information.
But the tracking tools that send conversion data to ad platforms? Most of them only send the bare minimum. A typical conversion tracking setup sends the event type (like "Purchase"), the value, and maybe an email address if you're lucky. All that other customer data sitting right there in the form submission or order? It never makes it to the ad platform.
I talked with a site owner last year who was spending over $5,000 a month on Meta ads for their online course. Their Event Match Quality score was hovering around 4. That meant Meta could only match about 40% of their purchase events to actual users. More than half of their conversion data was essentially invisible to Meta's optimization algorithm. They were paying premium prices for what amounted to a half-blind ad system.
The fix wasn't complicated. It was just a matter of sending more customer data along with each conversion event. Once they started passing phone number and address fields alongside the email they were already sending, their Event Match Quality jumped to 8 within a few days. Same ad spend, same creative, same audience, but now Meta could actually see who was converting and optimize accordingly.
The Real Impact on Your Ad Spend
Let me be specific about what happens when your match quality improves:
Better conversion attributionThe process of determining which channels, campaigns, or actions contributed to a conversion, helping you understand what influenced a visitor’s decision to take action.. When match quality is low, some conversions simply disappear from the ad platform's view. They happened on your site, but the platform can't connect them to a user. That means your reported return on ad spend (ROAS)Measures how much revenue is earned for every dollar spent on advertising, helping you evaluate the effectiveness of your ad campaigns. looks worse than reality. According to Meta's Conversions API documentation, implementing the Conversions API with high-quality customer data can improve attributed conversions by up to 20%.
Smarter audience building. Ad platforms build lookalike and similar audiences based on who converts. If they can only match half your conversions to real profiles, they're building audiences from incomplete data. Higher match rates mean better lookalike audiences, which means more efficient prospecting.
Lower cost per acquisition. When the platform's algorithm has better data about who actually converts, it gets smarter about who to show your ads to. The optimization improvements compound over time. A recent Meta case study compilation showed businesses implementing the Conversions API with comprehensive customer data saw cost per action improvements ranging from 10-30%.
More resilient tracking. Browser-based tracking (pixel-only) is increasingly unreliable due to privacy changes, ad blockers, and cookie restrictions. Server-side events with customer data matching provide a backup pathway that doesn't rely on browser cookiesA small piece of data stored in a user’s browser that helps websites remember user activity, preferences, or sessions across visits.. This redundancy means fewer lost conversions and more stable performance data.
How Each Ad Platform Uses Your Customer Data
The mechanics differ slightly across platforms, but the principle is universal.
Meta (Facebook/Instagram) uses the Conversions API to receive server-side events. Each event can include customer parameters like email (em), phone (ph), first name (fn), last name (ln), city (ct), state (st), zip code (zp), and country. All values are SHA-256 hashed before being sent, so the actual data never leaves your server in plain text. Meta then matches these hashed values against hashed values in their user database to identify the person who converted.
Google Ads supports Enhanced Conversions that work similarly. When a conversion happens, hashed customer data (email, name, phone number, address) is sent alongside the conversion tag. Google uses this to match conversions to signed-in Google users, recovering events that would be lost due to cross-device journeys or cookie limitations.
TikTok accepts customer data parameters through their Events API. Like Meta, they support hashed email, phone, and name fields to improve match rates for conversion events.
Microsoft Ads, Pinterest, Reddit, and X all have their own enhanced matching or customer data features that follow the same pattern: send more hashed customer data, get better matching, get better ad performance.
The important point is that all of these platforms are asking for the same types of customer data. If you can collect it once and format it correctly for each platform, every ad channel you run benefits simultaneously.
How Conversion Bridge Sends Better Customer Data Automatically
This is the problem I built Conversion Bridge to solve. Not just tracking conversions, but tracking them with the richest possible customer data so ad platforms can actually use that information.
Enhanced Matching Across 30+ Integrations
As of version 1.13, Conversion Bridge automatically extracts and sends phone numbers and address fields (city, state, zip, country) from over 30 WordPress plugin integrations. This happens alongside the email, first name, and last name data that was already being captured.
That means when a WooCommerce order comes through, Conversion Bridge doesn't just send "Purchase, $99, email@example.com" to your ad platforms. It sends the full set: email, first name, last name, phone number, city, state, zip code, and country. All properly normalized, hashed, and formatted for each platform's specific requirements.
The same applies across ecommerce integrations, form plugins, membership systems, donation platforms, learning management systems, and booking tools. If the plugin collects the data, Conversion Bridge sends it.
Automatic Normalization and Hashing
Each ad platform has specific formatting requirements. Meta wants phone numbers without the + prefix. Google wants SHA-256 hashed values in a specific structure. TikTok has its own normalization rules.
Conversion Bridge handles all of this automatically. Phone numbers are normalized to E.164 format, names are lowercased and trimmed, email addresses are cleaned up, and everything is hashed appropriately for each platform. You don't need to think about the technical details.
Where the Data Comes From
Here's what makes this work so well on WordPress: the data is already there. Your plugins are already collecting it. Conversion Bridge just makes sure it gets where it needs to go.
For ecommerce plugins, checkout forms already collect billing phone, city, state, zip, and country. Conversion Bridge pulls these directly from the order data and includes them with purchase and checkout events.
For form plugins, phone fields are automatically detected and included with form submission events. The specific field mapping depends on the form plugin, but Conversion Bridge handles the detection and extraction across all supported form integrations.
For membership and LMS plugins, registration and purchase events include whatever customer data the plugin collects during signup, including phone and address when available.
For donation plugins, donor information including phone and address fields flow through to ad platforms alongside the donation conversion event.
Server-Side Events With Full Customer Data
For platforms that support server-side tracking, like Meta's Conversions API, Conversion Bridge sends conversion events directly from your server with the complete set of customer data parameters. This bypasses browser limitations entirely and gives you the most reliable, data-rich conversion tracking possible.
Checking Your Current Event Match Quality
If you're running Meta ads, you can check your Event Match Quality right now:
- Go to Meta Events Manager
- Select your pixel
- Click on any event (like Purchase or Lead)
- Look for the "Event Match Quality" score
If you see a score below 6, you're leaving performance on the table. The most common reason for a low score is missing customer data parameters, exactly what enhanced matching solves.
For Google Ads, check your conversion actions in the Conversions section. Google shows diagnostics for Enhanced Conversions, including whether customer data is being received and the match rate for your conversion events.
A Quick Checklist for Better Ad Data
Whether or not you use Conversion Bridge, here are the principles that matter:
Send email with every conversion event. This is the bare minimum. If your tracking setup doesn't include email, fix that first.
Add phone number. This is the single biggest improvement most sites can make after email. It's a strong matching signal across all platforms.
Include address fields when available. City, state, zip, and country add incremental matching improvement. For ecommerce where you already collect billing addresses, there's no reason not to send this data.
Hash everything properly. Customer data must be SHA-256 hashed before being sent to ad platforms. Sending unhashed data is both a privacy concern and a technical error that platforms will reject.
Use server-side events when possible. Browser-based tracking is becoming less reliable. Server-side conversion tracking with customer data provides the most complete and accurate picture.
Test and verify. Check your Event Match Quality scores, review your Enhanced Conversions diagnostics, and verify that the data is actually flowing correctly.
Want to see your current Event Match Quality improve? Conversion Bridge supports server-side Conversions API for Meta and Enhanced Conversions for Google Ads with full customer data. No code required.
Better Data, Better Results
The fundamental shift in digital advertising over the past few years has been away from passive cookie-based tracking and toward active first-party dataInformation collected directly from your website visitors, customers, or users—such as form submissions, purchase history, and behavior on your site. sharing. Ad platforms aren't just suggesting you send more customer data. They're building their entire optimization systems around it.
The sites that send rich, well-formatted customer data with their conversion events are getting better ad performance. Not because they found some secret hack, but because they're giving the algorithms what they need to work properly.
If you're running ads to your WordPress site, the customer data is already being collected by your plugins. The question is whether it's actually making it to your ad platforms in a format they can use.
Conversion Bridge connects 67 WordPress plugins to 8 ad platforms with automatic enhanced matching, including the expanded phone and address field support across all integrations. If you want to see higher Event Match Quality scores and better ad performance without writing any code, it's worth taking a look.
Frequently Asked Questions
What is Event Match Quality and what score should I aim for?
Event Match Quality is Meta's rating (1-10) of how well your conversion events can be matched to real users. A score below 6 means your events aren't matching well enough for effective optimization. Aim for 8 or higher by sending email, phone number, name, and address data with each conversion event.
Does sending customer data to ad platforms create privacy concerns?
No. Customer data is SHA-256 hashed before it's sent to any ad platform. This means the actual email addresses, phone numbers, and addresses never leave your server in plain text. The ad platform receives a one-way hash that can only be compared against their own hashed user database, not reversed back into readable data.
Which WordPress plugins support enhanced matching with phone and address fields?
Conversion Bridge version 1.13+ supports enhanced matching with phone and address data across 30+ integrations, including ecommerce plugins, form builders, membership systems, donation platforms, LMS plugins, and booking tools. Any plugin that collects customer phone or address information during checkout, signup, or form submission can pass that data to your ad platforms.
Will this work if I'm only running Google Ads, not Meta?
Yes. Enhanced customer data matching improves performance across all supported ad platforms, not just Meta. Google Ads Enhanced Conversions, TikTok Events API, Microsoft Ads, Pinterest, and others all benefit from receiving richer customer data with conversion events. Conversion Bridge formats the data correctly for each platform automatically.
