Appendix A | Message Field Data Description
The following appendix contains information regarding possible values for the modifier, action fields as well as descriptions for all other data fields.
Modifier
The modifier is a special value that is sent to the Terminal to initiate a unique transaction type. The table below contains a list of all supported modifier values.
Not all modifiers can be used with all transaction types. The table below contains a list of all supported modifiers for each respective Transaction Type (Action).
Action
All transactions supported in the standalone application will be supported in the integrated mode.
Data Fields
The table below contains a list of data fields used in Request and Response messages.