diff --git a/src/app-simplefin/app-simplefin.js b/src/app-simplefin/app-simplefin.js
index 31d10439c..dd37ee8c5 100644
--- a/src/app-simplefin/app-simplefin.js
+++ b/src/app-simplefin/app-simplefin.js
@@ -87,7 +87,27 @@ app.post(
     }
 
     try {
-      const account = results.accounts.find((a) => a.id === accountId);
+      const account =
+        !results?.accounts || results.accounts.find((a) => a.id === accountId);
+      if (!account) {
+        console.log(
+          `The account "${accountId}" was not found. Here were the accounts returned:`,
+        );
+        if (results?.accounts)
+          results.accounts.forEach((a) =>
+            console.log(`${a.id} - ${a.org.name}`),
+          );
+        res.send({
+          status: 'ok',
+          data: {
+            error_type: 'ACCOUNT_MISSING',
+            error_code: 'ACCOUNT_MISSING',
+            status: 'rejected',
+            reason: `The account "${accountId}" was not found. Try unlinking and relinking the account.`,
+          },
+        });
+        return;
+      }
 
       const needsAttention = results.errors.find(
         (e) => e === `Connection to ${account.org.name} may need attention`,
diff --git a/upcoming-release-notes/412.md b/upcoming-release-notes/412.md
new file mode 100644
index 000000000..b8c2f4a58
--- /dev/null
+++ b/upcoming-release-notes/412.md
@@ -0,0 +1,6 @@
+---
+category: Bugfix
+authors: [psybers]
+---
+
+Show better error if SimpleFIN account cant be found.