Payengine:
Endpoint to update an existing payment instrument referencing the paymentInstrumentId.
Can be used to refresh the verification code (CVC) for card payment instruments, e.g. in case of a recurring transaction the shopper can be forced to re-enter the CVC.
More info: Update payment instrument
Paygate:
The process for updating Scheme tokens can be found here: Computop Scheme Token Service#Accountupdater(Optionalfunctionality)