If you want Mida to keep the UTM parameters or URL query strings when you do redirect or split tests, here's what you do:

Enter the Base Variation URL and Variant URL. Then, toggle on the 'Keep original URL query strings / hashes' option.

Now, anytime someone visits mida.so/pricing, if there is a UTM tag or any URL parameter like mida.so/pricing?utm_medium=email, the visitor will be redirected to mida.so/pricing2?utm_medium=email.