What Is Event Match Quality (EMQ) in Meta Ads?

What is Event Match Quality? Event Match Quality (EMQ) is the score Meta gives a conversion event to show how well the user data sent with it can be matched to a specific person’s Meta account, which is what lets Meta tie the conversion back to the ad that person clicked or saw. The more complete the user data (user_data) sent with the event (email, phone, IP address, the Pixel’s browser identifiers), the higher the EMQ tends to be. You can see the score in Meta’s Events Manager, for each event received through the Conversions API.

Why EMQ matters

An event with a low EMQ is still “correct” (the conversion did happen), but it contributes less to campaign optimization, because Meta is less confident about who triggered it, and therefore about which click and ad it should be tied to. In practice, two campaigns with the same number of conversions can optimize very differently in the algorithm, depending only on the quality of the data sent with each event.

How to improve EMQ in a Telegram funnel

The more user_data fields a CAPI call can send, the better the EMQ tends to be. In a Telegram funnel, the fields available are the ones from the bridge page: the fbp/fbc identifiers, plus the IP address and user agent of the person who clicked. With Track4you, they already go along with the events sent to Meta (when available), with nothing for you to build. None of them matches the quality of an email or phone number, but they still lift EMQ compared with sending only the bare minimum needed for the call not to be rejected.

EMQ isn’t a number you set once

Keep an eye on the score in Events Manager over time, not just during the initial setup. Changes to the bridge page, to the bot or to how data is collected can affect EMQ silently: no visible error, just a gradual drop in the quality of campaign optimization.

See the Facebook Pixel for Telegram guide to see these fields in detail, and the complete guide to the Facebook Conversions API to understand the concept in more depth. For a full, field-by-field diagnosis and improvement process, see how to improve Event Match Quality in practice.