Google Analytics helps you to track the campaigns from a broader perspective. Google Analytics can be enabled for the links you use in your Campaigns. You can use your Website, Landing Pages, Social Media Links for the tracking.
Navigation to Enable the Analytics for SMS Campaign
SMS+ -> New Campaign -> Tracking Option -> Redirected Link -> Google Anaytics -> On
Once you have provided the required information for the campaign, follow further steps to trigger the SMS campaign.
Once the campaign is completed, you can go to the Google Analytics office website and follow the following steps to view the reports. Based on your campaign source and medium you will be able to track from where and which campaign you are getting more leads from.
Navigate:
All Website Data -> Acquisition -> Camapigns ->All Campaigns -> Filter Source/ Medium.