Set Single Group Picker field to it's previous value on workflow transition

[Allie Stewart]

Hi,

One one of my workflow transitions, I need to set the value of my field "Support Team" back to it's previous value.  This field is a single user group picker.

• I've tried using {{fieldChange.fromString}}, {{changelog.from}}, etc. in the workflow on "set field" post function but that doesn't work.
• I've tried to do this in Automation using the smart values above, but that doesn't work either.
  • { "fields": { "customfield_10132": { "value": "{{fieldChange.fromString}}" } } }

And the automation throws errors like this: 

(Class com.atlassian.jira.issue.fields.rest.json.beans.GroupJsonBean), not marked as ignorable at [Source: N/A; line: -1, column: -1] (through reference chain: com.atlassian.jira.issue.fields.rest.json.beans.GroupJsonBean["id"]) (customfield_10132))

I can't find documentation on how to set to a previous value of a user group picker.  Can anyone give me a little guidance?

Thanks.

[Jehan Bhathena]

Hi @Allie Stewart 

For Single Group Pickers the fromString, there is a square bracket in the value :

Try creating a variable with the below smart value, and updating the field with the variable:

{{fieldChange.fromString.substringAfter("[").substringBefore("]").trim()}}