SAP ABAP Data Element FNCHK (Payment cards: Function for checking the card)
Hierarchy
☛
SAP_APPL (Software Component) Logistics and Accounting
⤷
SD-BIL-IV-PC (Application Component) Payment Cards
⤷
VFC (Package) Application development R/3 billing docs.: Payment cards
SAP_APPL (Software Component) Logistics and Accounting⤷
SD-BIL-IV-PC (Application Component) Payment Cards⤷
VFC (Package) Application development R/3 billing docs.: Payment cards
Basic Data
| Data Element | FNCHK |
| Short Description | Payment cards: Function for checking the card |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | FUNCNAME | |
| Data Type | CHAR | Character String |
| Length | 30 | |
| Decimal Places | 0 | |
| Output Length | 30 | |
| Value Table | TFDIR |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | ||
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 10 | Card check |
| Medium | 15 | Card check |
| Long | 20 | Card check |
| Heading | 34 | Function for checking the card |
Documentation
Definition
Contains the names of the function used by the system to check card numbers.
Use
You may type in a card number incorrectly or the customer may give you a wrong number. To avoid having to go through a lengthy authorization process with an incorrect number, you enter a function here that the system uses to check the number to make sure that it corresponds to general numbering standards, or the standards of a specific card company.
Procedure
Define and enter one of your own card checking functions in Customizing, or use one of the four contained in the standard system (function group V21A). These are:
- CCARD_CHECK_LUHN_MOD_TEN - Runs a general check of the card number, for example, for a valid length and combination of digits. This is the industry standard check.
- CCARD_CHECK_MC - Checks MasterCard numbers for a valid leading digit. The system also carries out the LUHN_MOD_TEN check.
- CCARD_CHECK_VISA - Checks Visa card numbers for a valid leading digit. The system also carries out the LUHN_MOD_TEN check.
- CCARD_CHECK_AMEX - Checks Amercan Express card numbers for a valid leading digit. The system also carries out the LUHN_MOD_TEN check.
History
| Last changed by/on | SAP | 19970812 |
| SAP Release Created in |
