1. Log into the Mobile Event Management App
  2. Search for and open the desired Event
  3. Click on the plus sign next to Event Registrants
  4. Search for the existing participant
  5. Click on their record
  6. When prompted if you want to add them as a participant to the event, say Yes
  7. Select desired additional registration fees and pay method
  8. When prompted to Register the participant for a total of $x.xx say Yes
  9. A new line item will be added to their Registration fees on their existing participant record
NOTE: This ONLY applies if the existing participant has already PAID for their registration.  If the participant has not yet paid, the additional donation cannot be added and charged through the Event App using Mobile Pay.