Hello @SpanielMum ,
This is a known issue that our devs are working on. I've tracked the issue to your account, and you'll be notified when the devs have an update regarding it. In the meantime, if you've already confirmed the links are there and work, then you can activate your automation and send your emails, regardless of the Check for Errors false alert.
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I wasn't aware that UTMs weren't automatically added until I saw this request! It was also a default feature of my old ESP and seems like a no-brainer to have.
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