Mailchimp apiキーを使用したGoogleシートの問題

すべての変数が正しい値を返していますが、urlfetch応答は403または401（アクセス拒否）を返します。Mailchimp apiキーを使用したGoogleシートの問題

まずログ出力：

var payload = { 
    "apikey": API_KEY, 
    "filters": { 
     "sendtime_start": REPORT_START_DATE, 
     "sendtime_end": REPORT_END_DATE 
    } 
}; 
Logger.log(payload);

第二のログ出力：

var params = { 
    "method": "POST", //what MC specifies 
    "muteHttpExceptions": true, 
    "payload": payload, 
    "limit": 100 
}; 
Logger.log(params);

第三のログ出力：woのではない

var apiCall = function(endpoint) { 

    //issue with syntax here? 

    var apiResponse = UrlFetchApp.fetch(automationsList, params); 
    var json = JSON.parse(apiResponse); 
    Logger.log(apiResponse); 
    return json; 
};

オートメーションAPI呼び出しrking：

var automations = apiCall(automationsList); 
var automationsData = automations.data; 

for (var i = 0; i < automationsData.length; i++) { 


    // are these response parameters? are these specific values getting pulled from MC - these are the type of values i want? 
    var a = automationsData[i]; 
    var aid = a.id; // identifies unique campaign *** does this have anything to do with the call function above - it used to be as cid b/c this was for campaigns before?? 
    var emails_sent = a.emails_sent; 
    var recipients = a.recipients; 
    var report_summary = a.report_summary; 
    var settings = a.settings; 

    if (send_time) { 

     var r = apiCall(reports, cid); // why does this have cid? but the other one didn't?? 
     var emails_sent = r.emails_sent; 
     var opens = r.opens; 
     var unique_opens = r.unique_opens; 
     var clicks = r.clicks; 
     var unique_clicks = r.unique_clicks; 
     var open_rate = (unique_opens/emails_sent).toFixed(4); 
     var click_rate = (unique_clicks/emails_sent).toFixed(4); 

    }

ザ・ループのためにも、私はautomationsDataための次のエラーを取得するために実行されますされていません。