I've been sending out a monthly newsletter with standard UTM tags to help us track engagement: utm_source=newsletter utm_medium=email utm_campaign=newsletter-jul-2025 I can see traffic in GA4 from people clicking on the links in the newsletter, but also a second set where the Source and Campaign has been modified with seemingly random characters, but matching the pattern of the parameter in my original: utm_source=abcdefghij (10 characters, same as newsletter) utm_campaign=abcdefghij-why-1234 (same pattern as my original) Email is being sent from Salesforce using Google Workspace connected account. Can anyone offer an explanation on what's happening? I've had someone suggest that Marketing Cloud scrambles UTM codes but we are not using it.
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