Use automation to update next gen project epic “issue color” value to change it appearing color

[Indrek Petti]

I would like to change epic colors to reflect their statuses what eould be useful in roadmap and backlog views for planning and fast communication without the need to open them separately. I have tried automation scripts but json is giving me errors what ever way I try to edit it.

Trying:
"customfield_10017" : { "value": "purple" }
or
"customfield_10017" : { "id": 2 }
gives me:
Error while parsing additional fields. Not valid JSON.

Could someone take the challenge and help me out with a working solution? ;)

[Indrek Petti · Accepted solution]

This one worked:

{
"fields": {
"customfield_10017": "yellow"
}
}