diff --git a/connectors/src/admin/cli.ts b/connectors/src/admin/cli.ts
index b382cf438a4f..bb193b771586 100644
--- a/connectors/src/admin/cli.ts
+++ b/connectors/src/admin/cli.ts
@@ -1,3 +1,4 @@
+import { isConnectorError } from "@dust-tt/types";
 import parseArgs from "minimist";
 import PQueue from "p-queue";
 import readline from "readline";
@@ -130,6 +131,18 @@ const connectors = async (command: string, args: parseArgs.ParsedArgs) => {
       return;
     }
 
+    case "set-error": {
+      if (!args.error) {
+        throw new Error("Missing --error argument");
+      }
+      if (!isConnectorError(args.error)) {
+        throw new Error(`Invalid error: ${args.error}`);
+      }
+      connector.errorType = args.error;
+      await connector.save();
+      return;
+    }
+
     case "restart": {
       await throwOnError(
         STOP_CONNECTOR_BY_TYPE[provider](connector.id.toString())
@@ -263,6 +276,7 @@ const notion = async (command: string, args: parseArgs.ParsedArgs) => {
       const connectors = await Connector.findAll({
         where: {
           type: "notion",
+          errorType: null,
         },
       });
       for (const connector of connectors) {
diff --git a/front/components/data_source/DataSourceSyncChip.tsx b/front/components/data_source/DataSourceSyncChip.tsx
index e4d1f05f1b1a..48356e0c2cd0 100644
--- a/front/components/data_source/DataSourceSyncChip.tsx
+++ b/front/components/data_source/DataSourceSyncChip.tsx
@@ -1,7 +1,9 @@
 import { Chip } from "@dust-tt/sparkle";
 import type { ConnectorType } from "@dust-tt/types";
+import { assertNever } from "@dust-tt/types";
 import { useEffect, useState } from "react";
 
+import { CONNECTOR_CONFIGURATIONS } from "@app/lib/connector_providers";
 import { timeAgoFrom } from "@app/lib/utils";
 
 export default function ConnectorSyncingChip({
@@ -19,8 +21,29 @@ export default function ConnectorSyncingChip({
   if (connector.errorType) {
     return (
       <Chip color="warning">
-        Oops! It seems that our access to your account has been revoked. Please
-        re-authorize this Data Source to keep your data up to date on Dust.
+        {(() => {
+          switch (connector.errorType) {
+            case "oauth_token_revoked":
+              return (
+                <>
+                  Oops! It seems that our access to your account has been
+                  revoked. Please re-authorize this Data Source to keep your
+                  data up to date on Dust.
+                </>
+              );
+            case "third_party_internal_error":
+              return (
+                <>
+                  We have ecountered an error talking to{" "}
+                  {CONNECTOR_CONFIGURATIONS[connector.type].name}. We sent you
+                  an email with more details to resolve the issue.
+                </>
+              );
+            default:
+              assertNever(connector.errorType);
+          }
+          return <></>;
+        })()}
       </Chip>
     );
   } else if (!connector.lastSyncSuccessfulTime) {
diff --git a/types/src/front/lib/connectors_api.ts b/types/src/front/lib/connectors_api.ts
index e85b281eecf4..ebab95f9b371 100644
--- a/types/src/front/lib/connectors_api.ts
+++ b/types/src/front/lib/connectors_api.ts
@@ -10,7 +10,15 @@ const {
 
 export type ConnectorsAPIResponse<T> = Result<T, ConnectorsAPIError>;
 export type ConnectorSyncStatus = "succeeded" | "failed";
-export type ConnectorErrorType = "oauth_token_revoked";
+const CONNECTORS_ERROR_TYPES = [
+  "oauth_token_revoked",
+  "third_party_internal_error",
+] as const;
+
+export type ConnectorErrorType = (typeof CONNECTORS_ERROR_TYPES)[number];
+export function isConnectorError(val: string): val is ConnectorErrorType {
+  return (CONNECTORS_ERROR_TYPES as unknown as string[]).includes(val);
+}
 
 export const CONNECTOR_PROVIDERS_USING_NANGO = [
   "confluence",