If a custom field has the correct Account name, is there a way to pull the account ID of it? Example: {{Staff.accountid}} If the custom field is named STAFF and the name in the field correlates to an active user in Jira
The accountId property is valid only with User Picker fields.
I think you would have to use the Send Web Request action to call the Jira REST API to get the account that matches the text value you have and get the account ID from the output.
Looking at the API documentation the endpoint for getting a user account ID is listed as "experimental", but there might be another API endpoint that will work for you.
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