utm parameters – Google Analytics not showing accurate data of UTM-tags

My UTM-tags are being activated as they do show up in Google Analytics real-time traffics tab. I can exactly see my medium and source whenever I test them.

However, when I go into all campaigns the data is not being tracked properly according to the data we only got 678 euro’s in sales for a specific campaign that has been “tracked” with the UTM-tag. Google Analytics picture

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However, when I look in my FB ads manager we clearly have more revenue and also way more orders with the ads that contain the tags.

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This also didn’t happen only once but multiple times and the data is completely wrong.

I checked if it was maybe a mistake with the UTM-tag itself but it should have been set-up properly as we use a UTM-tag building tool.

So I was wondering, is there a way to fix this?