How to copy value from one field to another

Question

In one of my project, I've created "Account" field as short text instead of dropdown. Post that I've created "Account" with dropdown as well. However, I've to migrate all values from "Account[Short Text" to "Account[Dropdown]".

I've tried copy from current issue as well as advance field editing, it didn't work.

Below is a json used in edit issue

{ "fields": { "customfield_17052": "Account[Short text]" } }

Darryl Lee · Answer

Doh, sorry, I forgot how to set Single-select fields:

{
  "fields": {
    "customfield_17052": { 
       "id" : "{{optionMap.get(issue.customfield_12345.value)}}"
    }
  }
}

Vishal Narkhede_hyfxnn · Answer

@Darryl Lee - I've tried to use optionMap however, it's failing with below error.

Configured JSON:

{
"fields": {
"customfield_17052": "{{optionMap.get(issue.customfield_15842.value)}}"
}
}

Error:

(Specify a valid 'id' or 'name' for Account (customfield_17052))

Vishal Narkhede_hyfxnn · Answer

@Megha  - Scriptrunneer is a paid app and our organization is not permitted the same for usage. Is there any other way with which I can get the same output?