
CHARTER, PARTS, MAINTENANCE, SERVICES
Very high ticket, low count, and contracts that govern more of the relationship than the payment does. A single charter or engine overhaul can exceed a year of a small merchant's volume, which makes authorization review and settlement management the real work.
Velocity and ceiling rules tuned for retail will stop a legitimate six-figure invoice. Limits here are set against the transaction pattern the business actually has, and large authorizations route to review rather than to a decline.