In case of failed to verify the orders on first attempt.  you can automated re-attempt verification by sending SMS or Call to customer after specified time of period.

SETUP

Step 1 : Go to app Sidebar-> App Settings.

Step 2 : Go to Re-attempt section and enable option.

Step 3 : Select mode for re-attempt 

• Call mode
• SMS mode

Step 4: Select time after re-attempt should happen.

Step 5 : Save settings