There are several options available, but the most popular would be to CANCEL ALL REMAINING PAYMENTS, which cancels the payment plan and the remaining outstanding balance. 

Then, use the SportsEngine INVOICING TOOL to send a new invoice for the remaining balance, with the payment terms you’ve chosen to provide more flexibility in this difficult time.

If you do not wish to charge a customer for a specific installment, you could instead choose to let the payment process, and then issue a partial refund the following day in the amount you choose.