To upgrade a member within Daily Sales that is not within their renewal window, you will use the steps below:
  1. Navigate to Sales > Daily Sales
  2. Next to Patron field, select the Patron name
  3. If this Patron is eligible for a mid-term upgrade, the Mid-term upgrade button will now appear
User-added image

If you do not see this button within your Daily Sales screen, refer here to add this button.