7 GA4 Mistakes That Are Killing Your Reporting (And How to Fix Them)

GA4 has been around long enough that the "it's new" excuse does not hold up anymore.

But a lot of small and mid-sized teams are still fighting with noisy, untrustworthy data. If GA4 does not feel useful to you, that is not a skill problem. GA4 is simply unforgiving when you make a few simple mistakes.

Here are the big ones worth fixing.

1. Treating GA4 Like Old Universal Analytics

If you spend your time hunting for bounce rate and average session duration, you are living in the past.

GA4 works differently. Everything is an event: page views, clicks, purchases, video views. Engagement rate replaces the old "did they bounce?" question with something more useful: "did they do anything meaningful?"

Stop looking for the old reports. Define a small set of key events. Use engagement rate and conversions as your main signals. That is your new north star.

2. Marking Everything as a Conversion

GA4 lets you mark any event as a conversion. A lot of teams mark too many.

When scrolling, clicking, and form views all count as conversions, nothing counts as a conversion. You end up with a number that means everything and tells you nothing.

Keep your conversion list tight. Restrict it to purchases, signups, high-intent forms, and one or two meaningful mid-funnel actions. Remove the rest. Glow Reports can then interpret your GA4 data in a way that reflects your actual funnel, not a wishlist.

3. Ignoring Data Retention Settings

The default GA4 data retention setting is often too short for real analysis.

You think you have 12 months of data. You try to build a trend line. Half the detail is gone. This catches teams off guard more than almost any other setting.

Go to Admin, then Data Settings, then Data Retention. Set event data retention to the maximum your plan allows. For most accounts, that is 14 months. This gives Glow Reports enough history to spot seasonality and long-term patterns, not just last month.

4. Living in Default Reports

The standard GA4 reports try to serve every type of business at once. That means they serve no one particularly well.

Build one custom view that fits your work. Include channels, conversions, and revenue if you have it connected. Pin it and make it your default landing screen. Stop scrolling through reports built for someone else.

Glow Reports can mirror this simpler structure and layer in CRM, ecommerce, or subscription data on top.

Many teams see GA4 conversions running lower than their backend orders and assume GA4 is broken.

It is probably not broken. Consent mode and stricter privacy rules mean fewer fully tracked sessions, especially in Europe. Data thresholding also hides small segments to protect user privacy. GA4 will always under-report slightly compared to your store backend.

The fix is not to fight this. Expect the gap. Use a reporting layer like Glow Reports to compare GA4 conversions, your Shopify or Stripe actual orders, and the differences explained by consent and attribution rules. This turns a confusing discrepancy into a predictable, documented difference.

6. Measuring Everything in GA4, Nothing in the Business

Engagement rate, scroll depth, button clicks. You can track all of it. But none of it tells you whether a visit became revenue, a lead, or a retained customer.

GA4 sits at the top of the funnel. The real question is always what happened after someone arrived.

Connect GA4 to the tools downstream. HubSpot for leads and deals. Shopify for orders. Stripe for subscriptions. Let Glow Reports join these data points together and report in money, not just in clicks.

7. Doing Monthly Reporting by Hand

If your reporting routine goes: export CSVs, paste into a spreadsheet, build a slide deck, then you already know how this story ends. You will eventually resent GA4, the spreadsheet, and the phrase "data-driven."

Keep GA4 as your raw data source. Use Glow Reports to pull GA4 data automatically, combine it with your other tools, and produce recurring reports with plain-language commentary. You can still log into GA4 when you want to dig into something specific. But you are no longer forced to start there every time.

None of these mistakes are permanent. Fix them once, put a smarter reporting layer like Glow Reports on top, and GA4 becomes what it was always meant to be: a quiet measurement engine running in the background, not the villain of your Monday mornings.