Ability to filter on Jira/JSM custom fields in create alert actions

Description

At this time, Jira and JSM integrations can only filter on default fields in the create alert actions. Having the ability to also filter on custom fields in the new framework would add additional flexibility.

Workaround

Custom fields can still be extracted from the Jira / JSM payload, typically with something like:

{{_payload.issue.fields.customfield_12345.value}}

{{_payload.issue.fields.customfield_12345.substringBetween("value=",",")}}

To see how a custom field parses in the payload, add:

{{_payload}}

to the create alert action's Description field. Sometimes the payload will be truncated in the Logs, but should parse entirely in the alert's Description - since it can parse up to 15k characters.

String processing and regex can be helpful to extract data as well.

Once you find the dynamic field that extracts the custom field, parse this into one of the create alert action's alert fields - such as an extra property.

You can then use Alert policies to filter on the extra property, and modify the alert to add a responder, add a tag, etc.