I'm trying to set up a url redirect experiment where a single query parameter is changed in the redirect, but the url targeting does not seem to be matching because there are other dynamic params that are passed in these urls. For example. ORIGINAL URL:

<http://mydomain.com?param1=123>

VARIATION:

<http://mydomain.com?param1=456>

But I need it to match urls like this:

<http://mydomain.com?param1=123&param2=abc&param3=def>

Is this possible?

Hi Jay. Are you matching on param1 always being in the first position?