If you want to use a custom field, you can use either field key customfield_10500 or field name e.g. 'StoryPoints'. Custom field names are likely to have spaces, which can’t be parsed. If so, remove the spaces. It’s not case-sensitive but use camel-case for maximum readability. If your field names have any other punctuation you must use the format customfield_10500.
When you specify regular expressions, you don’t have to escape backslash characters. Example: write \d+ instead of \\d+
Compared to ScriptRunner for Jira Server, we are not able to deliver the functions described below.
We are not able to support queries that are based on user-specific data.
At this time we are not implementing this function.