Transformations Types of mappings used to modify data before migrating it.Transformations include concatenation, split, replace, substring, assignment, and date modifications. cannot be defined through the user interface of the Import Data Wizard. They must be defined in a data map A file that contains information about how data from a source system corresponds to data in Microsoft Dynamics CRM..
There are two types of transformations:
String transformations. Transform string data to be used in string fields or lookup fields Fields used to create a reference to a related record. Also known as a relationship field..
You cannot use multiple transformations on the same columns.
You cannot use transformations on drop-down list attributes Attributes that contain a set of values that a user must choose from. Also known as a picklist..