Analytics Overwriting Other Cookies?

[beetricks]

Has anyone ever noticed lower reported sales in other conversion tracking tools while using Google Analytics? In particular, I've noticed it across all other platforms, after implementing a new utm source/medium tag to track in Analytics.

Is it possible that Analytics cookies can overwrite other cookies?

If so, is this particular to Google Analytics, or would it be caused by any analytics package?

[dazzlebot]

I can't see how this is possible, not without GA intentionally removing the cookie #*$! for those stored under the current domain - and it would be a terrible practice for Google if they did