1. Login to your Tagalys dashboard.
  2. Navigate to Settings -> Boosting 
  3. Edit the boost which is scheduled to expire. (Alternatively, you could also directly click on the 'Edit' button on the expiry alert email you received)
  4.  Click 'Apply Boost'
  5. Click on the calendar button and select the desired date and time duration.
  6. Hit 'Apply' and save the boost.