diff --git a/test/apiTests.js b/test/apiTests.js
index c42e150..5ea1780 100644
--- a/test/apiTests.js
+++ b/test/apiTests.js
@@ -61,6 +61,7 @@ describe('API', () => {
 
             expect(log.error).to.be.called;
             expect(500).to.equal(spy.getCall(0).args[1].thirdPartyErrorCode);
+            expect("Unknown WPT issue").to.equal(spy.getCall(0).args[1].thirdPartyErrorBody);
 
             log.error.restore();
         });
@@ -85,7 +86,7 @@ describe('API', () => {
             expect(log.warn).to.be.called;
             expect(log.error).to.not.be.called;
             expect(400).to.equal(spy.getCall(0).args[1].thirdPartyErrorCode);
-            expect("unknown issue").to.equal(spy.getCall(0).args[1].responseBody);
+            expect("unknown issue").to.equal(spy.getCall(0).args[1].thirdPartyErrorBody);
 
             log.error.restore();
             log.warn.restore();
diff --git a/util/strings.js b/util/strings.js
new file mode 100644
index 0000000..ec330b2
--- /dev/null
+++ b/util/strings.js
@@ -0,0 +1,6 @@
+const truncateString = (str, lim) =>
+    str.length > lim ? str.slice(0, lim > 3 ? lim - 3 : lim) + '...' : str;
+
+module.exports = {
+    truncateString
+}
\ No newline at end of file
diff --git a/wtp/apiCaller.js b/wtp/apiCaller.js
index f03f894..33d9c8c 100644
--- a/wtp/apiCaller.js
+++ b/wtp/apiCaller.js
@@ -12,6 +12,7 @@ const logger = require('../logger');
 const log = logger.logger;
 const resultParser = require('./wtpResultsParser');
 const cloudinaryCaller = require('../cloudinary/apiCaller');
+const {truncateString} = require('../util/strings');
 const RESULTS_URL = 'https://www.webpagetest.org/jsonResult.php';
 const RUN_TEST_URL = 'http://www.webpagetest.org/runtest.php';
 const GET_TEST_STATUS = 'http://www.webpagetest.org/testStatus.php';
@@ -80,12 +81,13 @@ const runWtpTest = async (url, mobile, cb) => {
     throwHttpErrors: false
   };
   let response;
-  let rollBarMsg = {testId: "", analyzedUrl: url, thirdPartyErrorCode: "", file: path.basename((__filename))};
+  let rollBarMsg = {testId: "", analyzedUrl: url, thirdPartyErrorCode: "", thirdPartyErrorMsg: "", file: path.basename((__filename))};
   try {
     response = await got(options);
     const {statusCode, body} = response;
     if (statusCode !== 200) {
       rollBarMsg.thirdPartyErrorCode = response.statusCode;
+      rollBarMsg.thirdPartyErrorBody = body && truncateString(body, 1000) || "";
       cb({status: 'error', message: 'WTP returned bad status with url ' + url, error: response.statusMessage, logLevel: logger.LOG_LEVEL_ERROR}, null, response, rollBarMsg);
       return;
     }
diff --git a/wtp/wtpResultsParser.js b/wtp/wtpResultsParser.js
index 9dcdd40..8630ab2 100644
--- a/wtp/wtpResultsParser.js
+++ b/wtp/wtpResultsParser.js
@@ -98,7 +98,7 @@ const parseTestResults = (testJson) => {
 const parseTestResponse = (body, rollBarMsg) => {
   if (body.statusText !== 'Ok') {
     rollBarMsg.thirdPartyErrorCode = body?.statusCode;
-    rollBarMsg.responseBody = body.statusText;
+    rollBarMsg.thirdPartyErrorBody = body.statusText;
     logger.warn('WPT returned an error', rollBarMsg);
     return {status: 'error', message: 'wpt_failure'}
   }