Why can't I change the domain being tracked in my campaign?

[ScottShrum]

Apologies if this has already been answered a million times and/or if I'm posting this in the wrong place... I did look, but couldn't find the answer anywhere...

I just realized that all this time I have been tracking www.mydomain.com in my campaign for a long time now, while I should probably have been tracking *.mydomain.com. I wanted to change this, but it looks like I can't. If I have to set up a whole new campaign, with all of the same keywords, competitive sites to track, etc., that will take forever.

Why can't I just change it so that my campaign starts tracking *.mydomain.com instead of www.mydomain.com from now on?

Thank you!

[RyanKent]

Why can't I change the domain being tracked in my campaign?

There are issues due to the campaign tracking historical information. In order to change the domain, you need to create a new campaign. I had asked this same question previously and Megan provided the helpful response below:

Hi Ryan,

Thanks for writing in!

Unfortunately, the tool doesn't allow the domain of a campaign changed once it's setup. It's limited in that way, because if the parameters of a campaign were constantly changing, it could make it extremely difficult to interpret historical data in terms of why progress was or wasn't made.

You'll need to set up a new campaign with the domain, but you can archive your current campaign so that you'll have all of the historical data for reference. Also, archiving doesn't take up a campaign slot.

I hope that helps!

Have a great day, 
Megan