| R | Payment card (debit or credit) | 
| C | Checking | 
| S | Savings | 
| CCD | Corporate credit or debit | 
| PPD | Prearranged payment and deposit entry | 
| TEL | Telephone initiated entry | 
| WEB | Internet initiayed entry | 
| C21 | Check 21 | 
| FF | Franchising fee | 
| P | Person | 
| O | Organization (Corporation) | 
| DM | Direct marketing | 
| EC | Ecommerce | 
| VC | Visa credit card | 
| VD | Visa debit card | 
| MC | MasterCard credit card | 
| MD | MasterCard debit card | 
| DC | Discover credit card | 
| DD | Discover debit card | 
| AC | AmEx credit card | 
| NC | Diners credit card | 
| BD | Bank debit card | 
| BC | Checking account | 
| BS | Savings account | 
| VP | Visa prepaid card | 
| VS | Visa fleet card | 
| MP | MasterCard prepaid card | 
| MF | MasterCard fleet card | 
| EF | EBT food stamp | 
| EC | EBT cash benefit | 
| GG | General gift card | 
| FL | Fleet One card | 
| GF | Fuelman or FleetWide card | 
| VF | Voyager fleet card | 
| WX | WEX fleet card | 
| VE | Visa debit checking account | 
| VV | Visa debit saving account | 
| UC | UnionPay credit card | 
| UD | UnionPay debit card | 
| S | Sale (operation used to withdraw specific amount of money from the supplied credit card or bank account) | 
| C | Credit (operation used to deposit (return) specific amount of money to the supplied credit card or bank account) | 
| D | Sale decline (sale transaction that got declined) | 
| X | Credit decline (credit transaction that got declined) | 
| E | Error (transaction that did not go through an internal validation of the gateway and was not sent for further processing) | 
| B | Blacklist (transaction, which has not been processed, as the account is in the blacklist due to the previous hard decline) | 
| N | Return (represents direct debit payment that is not honored by a bank) | 
| G | Chargeback (operation of reversal of a prior outbound transfer of funds from a customer's bank account or credit card) | 
| R | Reversal (operation where credit card chargeback is reversed - money is given back to the merchant or customer) | 
| U | Notice of change (represents direct debit transaction that is returned by the customer's bank as a notification that some details of the transaction were corrected) | 
| J | Reject (direct debit payment that is rejected by the bank due to insufficient funds or errors in payment order) |