Update issue custom field value via API without going forge

Jira Development Jira Cloud
,
1

I want to update an existing issue custom data field value in any of my projects, but cant find a way to update a custom field of an issue via the API. the closest i got is to make this request:

https://developer.atlassian.com/cloud/jira/platform/rest/v2/api-group-issue-custom-field-values--apps-/#api-rest-api-2-app-field-fieldidorkey-value-put

PUT request to /3/app/field/customfield_id/value
my request is body is

{
  "updates": [
    {
      "issueIds": [
        ISSUE-ID
      ],
      "value": THEVALUEIWANTTOPUT
    }
  ]
}

But i’m getting back [400] This API works only with fields provided by Forge apps.
i’m kinda new to JIRA but just trying to do a simple information PUT

(I have a webhook with JQL filter that sends the data I want to external automation platform, i translate the data and want to put back different set of data in a different custom field)

How can I do it? is there any PUT request I can make that wont result with 400 only works with forge?
i’m using Jira Cloud Platform.

2

Welcome to the Atlassian developer community @AVDDD,

From what you are describing, I think you just want to edit an issue using PUT /rest/api/3/issue/{issueIdOrKey}. The hard part of that operation is knowing the right syntax for your field. The docs for that are advanced field editing using JSON.

3

Thank you. in my case simple text so the request you gave was correct and the body:

{
    "fields": {
        "customfield_100XX": "YOUR-TEXT"
    }
}
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