Variable data types

All variables have a data type that determines what kind of values it can store, such as a date, number, file path or a workflow user name. For example, if you want to save the name of an employee in a variable, you have to create a variable of type Text. The workflow can then store a name of the employee, such as "John," in the variable. Configuration fields also have data types they accept. You can only add a variable of an accepted data type into a configuration field.

Data Type	Description
Text	Text string. This type of variable can be used to store information such as an employee name, email address, username, or any other string.
Boolean	The value can be either True or False, Yes or No.
Date/Time	Date and time value.
GUID	Globally unique identifier, often used to reference a list item in SharePoint.
Number	Integer number with decimal value.
Integer	Integer number with no decimal value.
Choice	A value that requests a selection from a list of allowed values.
Person or Group	A value that requests a selection from a user lookup.
Hyperlink	A value that requests a hyperlink URL and description.
Dictionary	A container that holds a single logical unit of variables. For more information, see Dictionary variables.
Collection	An index-based array of values, also known as an ordered list of values. For more information, see Collection variables.