NOTE: The Profile ID is not the same as the UA number.  The UA number is  generally written as UA-xxxxxxx-1.  The Profile ID is only numbers.

To discover the Profile ID, Log in to Google Analytics.  Within Google Analytics, click on view report for your site.  Next, you will need to copy the Profile ID from the address bar.  The Profile ID is the series of numbers that come after "id=" and before the amperstand (&).  The image below highlights an example of a Profile ID.

Once you have copied the Profile ID, you can now apply it to your site.  Now, Log in to your website as an administrator and go to www.yoursiteurl.com/en/settings/#semgoogleanalyticsprofileid

Paste the Profile ID into the setting titled "SEM Google Analytics Profile ID" and click Change.  Your Analytics Profile ID has now been added.  You can now go back to the Analytics Dashboard within your site to see your statistics.