"Specify a valid project ID or key" exception while creating an issue from Google Script

[Zet]

I'm trying to create an issue in my Jira (Cloud) project with URL Fetch in Google Script.

The main code is:

    issue = {

        "fields": {

          "issuetype": "Task",

          "summary": "Summary",

          "reporter": {"displayName": "John"},

          "priority": "Medium",

          "project": {"key": projectKey}

        }

      };

    UrlFetchApp.fetch(jiraUrl, {

      method: "POST",

      headers: {

        'Content-Type': "application/json",

        "Authorization": "Basic " + Utilities.base64Encode(userName + ':' + apiToken)

      },

      payload: JSON.stringify(issue)

    });

---

When I run it, I get a 400 exception: Truncated server response: {"errorMessages":[],"errors":{"project":"Specify a valid project ID or key"}}

However, I'm pretty sure that I put the correct key (shows in the issue datas I got from my Jira project in the same URL Fetch way) of my project into the line ("project": {"key": projectKey})

And I also tried using "project": {"id": projectId}, but still the same exception.

I have found similar questions and reports about this exception on the Internet. But it seems no effective solution mentioned ever.

[Lizzie_Rogers · Accepted solution]

If you're in a ticket with a label, and click on that label, it'll pull up a search of all tickets with that label.

You can also go into Issues > search for issues and search there.  JQL: labels = "ABC"