This is the documentation of JSU for Jira Server/Data Center. If you are using JSU on Jira Cloud, you can find the documentation here.
The 'Value Field' check will compare the current value of a field against a predefined value. It can compare strings, numbers or option id's. For select fields, you may compare either by string or option id, the latter may be better, as the label of an option may change over time, the id however does not.
You must specify the field and value that will be the prerequisite for the check. For example:
If you choose the comparison type String, only '=' and '!=' are valid options.
For information on how to configure a check for a workflow transition in JIRA, see the JIRA documentation.
A workflow is configured so that the 'Start Progress' transition has the 'Value Field' check set to 'MultiSelect' = '10021' (option id). A user viewing an issue in that workflow will not see the 'Start Progress' transition unless 'MultiSelect' has at least the option with id '10021' chosen.
Supported Field Types