Open source feature flagging and experimentation platform for stress free deployments, measured impact, and smarter decisions.

GrowthBook Users

When you added the GrowthBook SDK, what did you put for the trackingCallback?

``` trackingCallback: (experiment, result) =&gt; {
            try {
                // @ts-ignore
                const localDataLayer = window?.dataLayer || [];

                const event = {
                    event: 'experiment',
                    experiment: experiment.key,
                    variation: result.variationId,
                    sessionId: pageProps?.sessionId || Cookie.get('sid'),
                };
                localDataLayer.push(event);
            } catch (error) {
                // silences the error in dev mode
            }
        },```


If you look in GA do you see those events being fired the expected number of times?

It looks like you might be doing SSR with something like Next.js. window.dataLayer won't exist during the server render, so the tracking might not be working as expected.