Create epic fails due to custom fields

Jira Development
1

Hi

I’m working on an Excel macro to create issues and epics for a project. Issue creation works fine so far but creation of epics fails due to custom fields (epic-name and budget). Unfortunately the response is telling not too much about the error, just mentioning the field names.

That’s my JSON, what’s my mistake?

{
    "fields": 
    {
        "project":{
            "key": "PROJTEST"
        },
        "summary": "testepic1",
        "description": "testepic01",
        "issuetype": {
            "name": "Epic"
        },
        "customfield_12335":"100h",
        "duedate":"2020-11-1",
        "customfield_12932":"testepic1"
    }
}
2

JSON is OK, just had wrong ids of custom fields