How do I void an unsuccessful transaction? Tanita Ridzuan Follow If you are a Boost Business App user, please perform the following steps: Login to Boost Business App Click on the icon 'Transaction History' Swipe left to void the specific transaction Cancel or Void an approved sales (QR Payment) transaction can be performed ONLY: For sales transactions on the same day If you are the user with access privilege - Merchant Owner or Outlet Supervisor