When you are configuring a .CSV parser, you can enable basic mapping, where one source field can only correspond to one destination field.
About basic mapping
The search box above the Transaction fields list allows users to search for a destination field by name, or only display a mapped transaction field.
The Terminal ID, Transaction ID, and Transaction start time fields are mandatory, and must be associated to a source field.
The Transaction start time must be mapped to the timestamp source field in the POS. If the timestamp source field is mapped to a field other than Transaction start time, then the Transaction start time will be equal to the oldest timestamp value. If the Transaction end time is not mapped but the line timestamp is, then the Transaction end time will be equal to the most recent timestamp value.
The transaction Line raw field has a default value. If the field is not mapped, then the value will correspond to the current line read from the .CSV file.
