Reserved payment-instruments: can they be removed?
Don't delete them, but there is a trick to disable the ones you don't want without resorting to direct SQL queries. Check out this solution on households to see how to do it via API explorer. In your case we would use:


Entity = OptionValue
Action = Create
Option Group ID = payment_instrument
Option Value ID = 88 (e.g. for Debit Card)
Option Is Active = False.