The System Variable standard rule enables you to set a variable that maps
the current date and time to the selected field. The selected map component
must have a data type of Date/Time.
2. The Use Constant standard
rule enables you to move a constant value to the specified
field and indicate a qualifying relationship with another field. Constants are
used in maps to hold information that is needed later in the map. We can
observe that the qualifiers available (second option box) are from segment... [More]