Indicates how the Plan Code data will be applied to the loan.
Possible values are:
all - Apply all data associated with plan code. The current loan data will be overwritten with the selected plan code data.
planCodeOnly - Apply the plan code data and do not update conflicting loan attributes. Any conflicting data will be retained on the loan.
If import is null and there are no conflicts, all data associated with the plan code will be applied to the loan.
If import is null and there are conflicts, no data will be applied to the loan.