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Throughout the documentation we refer to data types that can be used in the expression parser and its functions.

Data types define what kind of data a function needs as input and what you should expect as output.


The most common data types

Data typeDescriptionExample

This type represents any kind of text or character string including all kinds of select and multi-select fields


Any field type or data type is susceptible of being transformed to text, so any field can be referenced as a text-string value using the following notation: %{...anyfield}, and %{...anyfield.i} for Cascading Select or Multi-Cascading Select fields, where i is the index that represents the level to be accessed. (i = 0 is used for base level).



"Hello world"





Comparison operators return a logical value true or false. isActive(text user_name)


Additional data types

You will find many data type references throughout the documentation that need to be explained in more detail. They all related to one of the categories above.


Data typeDescriptionExample









Data typeDescriptionExample









Data typeDescriptionExample








Casting (converting) data types


Casting (or transforming) data types is very important throughout all functions provided by JWT.

To be able to set, transform or calculate values it might be necessary to turn a text value to a number, a number or a timestamp to a text, and even individual text or number values to a list.

The following functions will help you to achieve that.


Available functions