diff --git a/ui/sign-in/src/experience-api.ts b/ui/sign-in/src/experience-api.ts
index 3f2e4bf..497a05c 100644
--- a/ui/sign-in/src/experience-api.ts
+++ b/ui/sign-in/src/experience-api.ts
@@ -180,7 +180,19 @@ export async function completeRegistration(
   const verifiedId = await verifyCode(email, verificationId, code);
   await addProfile('password', password);
   await identifyUser(verifiedId);
-  return submitInteraction();
+
+  const result = await trySubmit();
+  if (result.ok) return result.redirectTo;
+
+  // MFA not enrolled, UserControlled policy — skip the binding prompt
+  if (result.status === 422 && result.code.includes('mfa')) {
+    await skipMfaBinding();
+    const retry = await trySubmit();
+    if (retry.ok) return retry.redirectTo;
+    throw new Error(retry.message);
+  }
+
+  throw new Error(result.message);
 }
 
 // --- Forgot Password ---