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: Detailed Documentation on regular expressions can be found on https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html for a technical documentation, or https://www.regular-expressions.info/ for a more straightforward description. Another good resource for developing and testing regular expressions is https://www.freeformatter.com/java-regex-tester.html. 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. JSU supports many different field types; system fields, as well as custom fields. You should be aware, however, that not all field types or all combinations are supported. We have tried to cover the most important field types but we are continuously adding more and improving how different field types are supported. We recommend you test JSU with fields to see if it is compatible with your system. Our evaluation license provides you with a 30-day free trial. Description
Configuration
Example
Supported Field Types