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Key event

Google Analytics 4's name for an event you mark as important, such as a purchase or a sign-up. A key event can be imported into Google Ads as a conversion.

By the Optizads team

On this page
  1. Why it matters
  2. Where to find it in Google Ads
  3. An example
  4. Common mistakes
  5. Checks that look at it
  6. Related terms

Why it matters

Google Analytics renamed its conversions to key events. Many accounts import them into Google Ads, so the same result can exist as an Analytics key event and as a Google Ads conversion action at once.

If both are primary in Google Ads, the account can count one sale twice. If neither is imported, the account may be missing events Analytics already records, such as add to cart.

Where to find it in Google Ads

  1. In Google Analytics, open Admin, then Events, and see which are marked as key events.
  2. In Google Ads, open Goals, then Conversions, and look for actions whose source is Google Analytics.
  3. Compare them with actions from the Google tag measuring the same result.
  4. Decide which one is primary for each result.

An example

A shop marks purchase as a key event in Analytics and imports it, while the Google Ads purchase tag also fires. Both are primary. Setting the imported one to secondary stops the double count.

Common mistakes

  • Importing key events and keeping the matching Google Ads tag primary too.
  • Marking every event as key, including page views.
  • Not importing useful funnel events that Analytics already records.

Checks that look at it

  • Google tag: The piece of code on your website that sends conversions and site data to Google Ads and Google Analytics.
  • Conversion action: One definition of a conversion in Google Ads, with its source, its counting, its value and its window.
  • Primary conversion action: A conversion action used for bidding and shown in the Conversions column.

Questions, answered.

Anything else? Ask Oppy in the product, or write to the team.

Are key events the same as conversions?

In Google Analytics, key events replaced what used to be called conversions. In Google Ads, conversions are still called conversions, and key events can be imported as conversion actions.

Should I import key events into Google Ads?

Yes for useful ones, but make sure each result is primary only once, either from the import or from the Google Ads tag.

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