Understanding Custom Metrics in Facebook Ads - Custom Conversions VS Custom Events

Are you working with Facebook Ads and want to know where to find custom conversions and custom events?

When we work in the Facebook console we can see the custom conversions and custom events.


Custom conversions and custom events on Facebook console


Where we can find this custom metrics on Dataslayer?

In this example, we will use Google Sheets but it applies to all our products.

Custom Conversions

After opening the Dataslayer extension and selecting a connector and an account, you will be able to select the metrics you want for your table.

If you don't know how to select the connector or account you can learn it in this FAQ.


There, if you scroll down to the bottom of the list, you will find your Custom Conversions.


If you select "All accounts" and some of them don't have custom conversions, the custom conversions field will NOT be displayed. Because of that, make sure that all the accounts you select have custom conversions.

Custom Events 

Our connectors only work with the official data source APIs. The APIs and the data source consoles are different and independent products, so not all of their metrics or dimensions match or are the same.

In this case, Facebook API doesn't have the Custom Events information available to import, and that is why they are not available in Dataslayer either.

We cannot decide what metrics or dimensions are in each connector, this is something external to Dataslayer that depends on the API of each data source.


As always, please contact us via our live chat on our website or via email if you still have doubts or questions. We are happy to help!