1. Once Feeback is created and launched, make it as default and Note down the Feedback Id (Ex:172).
  2. Now go to setting option, Click on Notification  & copy the feedback link tag, i.e. [FBID>id].
  3. Edit the content in SMS Invoice Message template for the feedback and paste the feedback tag (i.e[FBID>id]  ex,id=172in the message template and replace the ID with Feedback ID/number of which you created in the Feedback section.
  4.  Finally click on the save to complete itAutomatically feedback link will be sent along with the bill SMS.