Industry specific MIT
Attention
Amex does not support Industry specific MITs.
The Merchant Initiated Transaction (MIT) transaction relates to a previous cardholder-initiated transaction but is conducted without the active participation of the cardholder. Usually MIT transactions are conducted using Stored Credentials but if the merchant or its agent stores the credentials for a single purchase only, the following applies.
| Concept | Description |
|---|---|
| Incremental: | An incremental authorization is typically found in hotel and car rental environments, where the cardholder has agreed to pay for any service incurred during the duration of the contract or in electric vehicle chargeing. |
| Resubmission: | This is an event that occurs when the original purchase occurred but the Merchant was not able to get authorization at the time the goods or services were provided. |
| Delayed charges: | A delayed charge is typically used in hotel, cruise lines and vehicle rental environments to perform a supplemental account charge after original services are rendered. |
| Reauthorization: | A reauthorization is a purchase made after the original purchase and can reflect a number of specific conditions. Common scenarios include delayed/split shipments and extended stays/rentals. |
| No show: | A No-show is a transaction where the merchant is enabled to charge for services which the cardholder entered into an agreement to purchase, but did not meet the terms of the agreement. |
New parameters:
Initiator with value M for merchant InitiationReason with values INC for Incremental, RES for Resubmission, DEL for Delayed charges, REA Reauthorization and NOS for No show.
When initiating a Merchant initiated subsequent transaction authorization must include:
- TransType = 12
- TransLCID from the response of the first transaction
- Initiator = M
- InitiationReason with appropriate value
Card present - Incremental
Attention
This is an exception from the standard MIT incrementals. A customer can use his card at a POS device to increment a previous transaction.
When initiating a card present, cardholder initiated incremental, authorization must include:
- TransType = 44 or 45
- TransLCID from the response of the first transaction
- InitiationReason = INC
Skip the 'Initiator' parameter (do not send 'C' or 'M')