Json populating custom field

[Alex Chunilal]

Hi All,

Im using JSON to import in new issues. I can create an issue type as Epic. I am also trying to populate the contents of 'Epic Name'. I have tried so many different combinations and also tried to use the customerfileID_10011 and its still not populating. Below is what Im sending

{
  "projects": [
   {
     "name": "MyProject",
     "key": "MP",
     "issues": [
        {
          "status": "In Progress",
          "issueType": "epic", 
          "externalId": "1",
          "summary": "General",
          "fields": {
             "Epic_Name": "some epic"
                    }

        }
               ]
   }
              ]

}

Can anyone help please

Thanks in advance