Regular Expression Precondition

JSU for Jira Cloud

This is the documentation of JSU for Jira Cloud. If you are using JSU on Jira Server/Data Center, you can find the documentation here.


The 'Regular Expression Check' compares the value of a text, number, or url field against a regular expression. You could verify that the content matches a given format with it.


You must select the field to be checked and enter the regular expression. For example:

  • [0-9]{4}-[0-9]{4} allows numbers such as: 1245-7783
  • [0-9]+ EUR$ allows price tags such as: 34 EUR
  • [a-z]* allows an empty string, or any lower case word such as: yellow
  • Option [A,B] allows a selection of options: Option A, Option B or both.

Detailed Documentation on regular expressions can be found on for a technical documentation, or for a more straightforward description. Another good resource for developing and testing regular expressions is


A workflow is configured so that the 'Create' transition has the 'Regular Expression Check Precondition'. If the summary contains the phrase "Onboarding" or "onboarding", a sub-task will be created for the creation of the user account in the company's systems.

Supported Field Types

In its different modules (especially those for workflows), the JSU app supports many different field types. System fields, as well as custom fields.

However you should be aware, that not all field types or all combinations are supported. We think we cover the most important field types and are still continuously adding and improving which, and how different field types are supported. But the one you need might not work (yet). 

We recommend that you test JSU with fields to see if it is compatible with your system. Our evaluation license gives you 30 days free trial.