diff --git a/src/components/Editor/Runners/PythonRunner/PyodideRunner/PyodideRunner.jsx b/src/components/Editor/Runners/PythonRunner/PyodideRunner/PyodideRunner.jsx
index 69e7e8cea..56db23b95 100644
--- a/src/components/Editor/Runners/PythonRunner/PyodideRunner/PyodideRunner.jsx
+++ b/src/components/Editor/Runners/PythonRunner/PyodideRunner/PyodideRunner.jsx
@@ -6,6 +6,7 @@ import { useTranslation } from "react-i18next";
 import classNames from "classnames";
 import {
   setError,
+  setErrorDetails,
   setFriendlyError,
   codeRunHandled,
   setLoadedRunner,
@@ -217,9 +218,14 @@ const PyodideRunner = ({
 
   const handleError = (file, line, mistake, type, info, rawTraceback) => {
     let errorMessage;
+    let errorDetails = {};
 
     if (type === "KeyboardInterrupt") {
       errorMessage = t("output.errors.interrupted");
+      errorDetails = {
+        type: "Interrupted",
+        message: errorMessage,
+      };
     } else {
       const message = [type, info].filter((s) => s).join(": ");
       errorMessage = [message, `on line ${line} of ${file}`].join(" ");
@@ -228,6 +234,14 @@ const PyodideRunner = ({
         errorMessage += `:\n${mistake}`;
       }
 
+      errorDetails = {
+        type,
+        line,
+        file,
+        description: info || mistake || "",
+        message: errorMessage,
+      };
+
       const { createError } = ApiCallHandler({
         reactAppApiEndpoint,
       });
@@ -257,6 +271,7 @@ const PyodideRunner = ({
     }
 
     dispatch(setError(errorMessage));
+    dispatch(setErrorDetails(errorDetails));
     disableInput();
   };
 
@@ -303,6 +318,7 @@ const PyodideRunner = ({
   const handleRun = async () => {
     output.current.innerHTML = "";
     dispatch(setError(""));
+    dispatch(setErrorDetails({}));
     dispatch(setFriendlyError(null));
     setVisuals([]);
     stdinClosed.current = false;
diff --git a/src/components/WebComponentProject/WebComponentProject.jsx b/src/components/WebComponentProject/WebComponentProject.jsx
index 2456573a5..dcebad3ce 100644
--- a/src/components/WebComponentProject/WebComponentProject.jsx
+++ b/src/components/WebComponentProject/WebComponentProject.jsx
@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from "react";
+import React, { useEffect, useRef, useState } from "react";
 import { useDispatch, useSelector } from "react-redux";
 import { useMediaQuery } from "react-responsive";
 import { marked } from "marked";
@@ -52,6 +52,7 @@ const WebComponentProject = ({
 
   const error = useSelector((state) => state.editor.error);
   const errorDetails = useSelector((state) => state.editor.errorDetails);
+  const friendlyError = useSelector((state) => state.editor.friendlyError);
   const codeHasBeenRun = useSelector((state) => state.editor.codeHasBeenRun);
   const projectInstructions = useSelector(
     (state) => state.editor.project.instructions,
@@ -64,6 +65,7 @@ const WebComponentProject = ({
   );
   const isMobile = useMediaQuery({ query: MOBILE_MEDIA_QUERY });
   const [codeHasRun, setCodeHasRun] = useState(codeHasBeenRun);
+  const prevCodeRunTriggeredRef = useRef(false);
   const dispatch = useDispatch();
   const renderer = new marked.Renderer();
 
@@ -120,19 +122,39 @@ const WebComponentProject = ({
   }, [dispatch, projectInstructions, permitInstructionsOverride]);
 
   useEffect(() => {
-    if (codeRunTriggered) {
-      document.dispatchEvent(runStartedEvent({ step: currentStepPosition }));
+    if (codeRunTriggered && !prevCodeRunTriggeredRef.current) {
+      document.dispatchEvent(
+        runStartedEvent({
+          step: currentStepPosition,
+          projectIdentifier,
+          projectType,
+        }),
+      );
       setCodeHasRun(true);
-    } else if (codeHasRun) {
+    }
+    prevCodeRunTriggeredRef.current = codeRunTriggered;
+  }, [codeRunTriggered, currentStepPosition, projectIdentifier, projectType]);
+
+  useEffect(() => {
+    if (!codeRunTriggered && codeHasRun) {
       const mz_criteria = Sk.sense_hat
         ? Sk.sense_hat.mz_criteria
         : { ...defaultMZCriteria };
 
       const payload = outputOnly
-        ? { errorDetails, step: currentStepPosition }
+        ? {
+            errorDetails,
+            step: currentStepPosition,
+            projectIdentifier,
+            projectType,
+          }
         : {
             isErrorFree: error === "",
             step: currentStepPosition,
+            errorDetails,
+            friendlyErrorShown: Boolean(friendlyError?.html),
+            projectIdentifier,
+            projectType,
             ...mz_criteria,
           };
 
@@ -144,7 +166,10 @@ const WebComponentProject = ({
     outputOnly,
     error,
     errorDetails,
+    friendlyError,
     currentStepPosition,
+    projectIdentifier,
+    projectType,
   ]);
 
   useEffect(() => {
diff --git a/src/components/WebComponentProject/WebComponentProject.test.js b/src/components/WebComponentProject/WebComponentProject.test.js
index a673d6255..3f8f8132d 100644
--- a/src/components/WebComponentProject/WebComponentProject.test.js
+++ b/src/components/WebComponentProject/WebComponentProject.test.js
@@ -28,6 +28,9 @@ const renderWebComponentProject = ({
   loading,
   codeRunTriggered = false,
   codeHasBeenRun = false,
+  error = "",
+  errorDetails,
+  friendlyError,
   props = {},
 }) => {
   const middlewares = [];
@@ -35,6 +38,7 @@ const renderWebComponentProject = ({
   const initialState = {
     editor: {
       project: {
+        identifier: "test-project",
         project_type: projectType,
         components: [
           { name: "main", extension: "py", content: "print('hello')" },
@@ -47,6 +51,9 @@ const renderWebComponentProject = ({
       focussedFileIndices: [],
       codeRunTriggered,
       codeHasBeenRun,
+      error,
+      errorDetails,
+      friendlyError,
     },
     instructions: {
       currentStepPosition: 3,
@@ -65,7 +72,9 @@ const renderWebComponentProject = ({
 
 describe("When state set", () => {
   beforeEach(() => {
+    runStartedHandler.mockClear();
     renderWebComponentProject({
+      projectType: "python",
       instructions: "My amazing instructions",
       codeRunTriggered: true,
     });
@@ -83,9 +92,15 @@ describe("When state set", () => {
     expect(codeChangedHandler.mock.lastCall[0].detail).toHaveProperty("step");
   });
 
-  test("Triggers runStarted event", () => {
-    expect(runStartedHandler).toHaveBeenCalled();
-    expect(runStartedHandler.mock.lastCall[0].detail).toHaveProperty("step");
+  test("Triggers runStarted event once", () => {
+    expect(runStartedHandler).toHaveBeenCalledTimes(1);
+    expect(runStartedHandler.mock.lastCall[0].detail).toEqual(
+      expect.objectContaining({
+        step: 3,
+        projectIdentifier: "test-project",
+        projectType: "python",
+      }),
+    );
   });
 
   test("Triggers stepChanged event", () => {
@@ -232,24 +247,98 @@ describe("When overriding instructions is not permitted", () => {
 
 describe("When code run finishes", () => {
   test("Triggers runCompletedEvent", () => {
-    renderWebComponentProject({ codeHasBeenRun: true });
+    renderWebComponentProject({
+      projectType: "python",
+      codeHasBeenRun: true,
+    });
     expect(runCompletedHandler).toHaveBeenCalled();
-    expect(runCompletedHandler.mock.lastCall[0].detail).toHaveProperty(
-      "isErrorFree",
+    expect(runCompletedHandler.mock.lastCall[0].detail).toEqual(
+      expect.objectContaining({
+        isErrorFree: true,
+        step: 3,
+        projectIdentifier: "test-project",
+        projectType: "python",
+        errorDetails: undefined,
+        friendlyErrorShown: false,
+      }),
+    );
+  });
+
+  test("includes error details and friendly error state when a run failed", () => {
+    const middlewares = [];
+    const mockStore = configureStore(middlewares);
+    const initialState = {
+      editor: {
+        project: {
+          identifier: "test-project",
+          project_type: "python",
+          components: [
+            { name: "main", extension: "py", content: "print('hello')" },
+          ],
+          image_list: [],
+        },
+        loading: "success",
+        openFiles: [],
+        focussedFileIndices: [],
+        codeRunTriggered: false,
+        codeHasBeenRun: true,
+        error: "NameError: name 'kettle' is not defined on line 5 of main.py",
+        errorDetails: {
+          type: "NameError",
+          file: "main.py",
+          line: 5,
+          description: "name 'kettle' is not defined",
+        },
+        friendlyError: {
+          html: "<p>Friendly error</p>",
+        },
+      },
+      instructions: {
+        currentStepPosition: 3,
+        permitOverride: true,
+      },
+      auth: {},
+    };
+    store = mockStore(initialState);
+
+    render(
+      <Provider store={store}>
+        <WebComponentProject />
+      </Provider>,
+    );
+
+    expect(runCompletedHandler).toHaveBeenCalled();
+    expect(runCompletedHandler.mock.lastCall[0].detail).toEqual(
+      expect.objectContaining({
+        isErrorFree: false,
+        errorDetails: {
+          type: "NameError",
+          file: "main.py",
+          line: 5,
+          description: "name 'kettle' is not defined",
+        },
+        friendlyErrorShown: true,
+        projectIdentifier: "test-project",
+        projectType: "python",
+      }),
     );
-    expect(runCompletedHandler.mock.lastCall[0].detail).toHaveProperty("step");
   });
 
   test("Triggers runCompletedEvent with error details when outputOnly is true", () => {
     renderWebComponentProject({
+      projectType: "python",
       codeHasBeenRun: true,
       props: { outputOnly: true },
     });
     expect(runCompletedHandler).toHaveBeenCalled();
-    expect(runCompletedHandler.mock.lastCall[0].detail).toHaveProperty(
-      "errorDetails",
+    expect(runCompletedHandler.mock.lastCall[0].detail).toEqual(
+      expect.objectContaining({
+        errorDetails: undefined,
+        step: 3,
+        projectIdentifier: "test-project",
+        projectType: "python",
+      }),
     );
-    expect(runCompletedHandler.mock.lastCall[0].detail).toHaveProperty("step");
   });
 });