The following is a list of the valid Kinds of custom fields.

Kind	Notes
TextLine
TextArea
HtmlArea
Number	Represents any kind of number.
Integer	Represents only whole numbers
Money
Date
Time
TimeSpan	Represents durations.
DateTime
EmailAddress
PhoneNumber
FaxNumber
WebAddress
CheckBox
CheckBoxList
PickList	Represents a single-item combo-box.
Label	Represents a custom label
__M_TableName	These represent a link to another table.  For example, __M_Users would represent a user picklist.
Deprecated Kinds	These values are no longer supported.
SocalSecurityNumber
Recipient_Line1
Recipient_Line2
Address_Line1
Address_Line2
City
State
ZipCode

When injecting into a new system, if the new system does not support a specific Kind, in most situations, Universal Migrator will automatically adapt the field to a similar Kind.  For example, if Money is not supported, Number may be automatically substituted.