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

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

Data types in JWT

Data typeDescription

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

This type represents numeric values, and is also used to store date, time and date-time values. Learn more about Dates, times and time zones

  • Number list: This type represents a collection of numeric values returned by various functions. The size may vary from 0 to any number of numeric values.
  • Text list: This type represents a collection of text values returned by various functions. The size may vary from 0 to any number of text values.
  • Issue list: This type represents a collection of issues. The size may vary from 0 to any number of issues. It is returned by issue selection of filtering functions.

Learn more about Lists

If you need to "flatten" the list, or simply convert it to a text, to be written into any field, comment, etc., make sure to have a look at the toString() function!


Some operators, workflow functions, parser functions, and automation elements return a logical, or boolean, value of true or false.

These examples include, but are not limited to:



Converting (casting) data types