This is the most common authorisation type and most of the transactions are processed as final-authorisation. The transaction must be finalised always in the amount that it was initiated and it is not allowed to cancel the authorisation (Void) unless it suspected as fraudulent transaction (within 72 hours). The capture delay can be set for up to 3 days.
Pre-authorisation is less often used authorisation type but is needed in certain cases. This type of authorisation can be voided or finalised in a smaller amount than initial authorisation. The capture delay can be set for up to 7 days.