diff --git a/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthActivity.kt b/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthActivity.kt
index 04dee84..ccb5a5a 100644
--- a/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthActivity.kt
+++ b/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthActivity.kt
@@ -43,13 +43,12 @@ class AuthActivity : AppCompatActivity() {
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
     val authContext = intent.getParcelableExtra<AuthContext>(AUTH_CONTEXT)
-    authContext ?.let {
-      authProvider = AuthProvider(this, authContext)
-    } ?: run {
-      val responseIntent = Intent().apply { putExtra("EXTRA_ERROR", "AUTH_CONTEXT was null") }
-      setResult(RESULT_CANCELED, responseIntent)
-      finish()
-    }
+    authContext?.let { authProvider = AuthProvider(this, authContext) }
+      ?: run {
+        val responseIntent = Intent().apply { putExtra("EXTRA_ERROR", "AUTH_CONTEXT was null") }
+        setResult(RESULT_CANCELED, responseIntent)
+        finish()
+      }
   }
 
   private fun startAuth() {
diff --git a/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthProvider.kt b/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthProvider.kt
index 4a6ba05..9135201 100644
--- a/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthProvider.kt
+++ b/authentication/src/main/kotlin/com/uber/sdk2/auth/internal/AuthProvider.kt
@@ -92,16 +92,26 @@ class AuthProvider(
 
   private suspend fun sendPushedAuthorizationRequest(ssoConfig: SsoConfig) =
     authContext.prefillInfo?.let {
-      val response =
-        authService.loginParRequest(
-          ssoConfig.clientId,
-          RESPONSE_TYPE,
-          Base64Util.encodePrefillInfoToString(it),
-          ssoConfig.scope ?: "profile",
-        )
-      val body = response.body()
-      body?.takeIf { response.isSuccessful }
-        ?: throw AuthException.ServerError("Bad response ${response.code()}")
+      try {
+        val response =
+          authService.loginParRequest(
+            ssoConfig.clientId,
+            RESPONSE_TYPE,
+            Base64Util.encodePrefillInfoToString(it),
+            ssoConfig.scope ?: "profile",
+          )
+        val body = response.body()
+        body?.takeIf { response.isSuccessful }
+          ?: run {
+            // PAR request failed, but continue authentication without metadata
+            // User can still login, just without pre-filled information
+            PARResponse("", "")
+          }
+      } catch (e: Exception) {
+        // PAR request failed due to network or other error
+        // Continue authentication without metadata for better user experience
+        PARResponse("", "")
+      }
     } ?: PARResponse("", "")
 
   private fun getQueryParams(parResponse: PARResponse) = buildMap {
diff --git a/authentication/src/test/kotlin/com/uber/sdk2/auth/internal/AuthProviderTest.kt b/authentication/src/test/kotlin/com/uber/sdk2/auth/internal/AuthProviderTest.kt
index 1886879..26182ef 100644
--- a/authentication/src/test/kotlin/com/uber/sdk2/auth/internal/AuthProviderTest.kt
+++ b/authentication/src/test/kotlin/com/uber/sdk2/auth/internal/AuthProviderTest.kt
@@ -200,4 +200,85 @@ class AuthProviderTest : RobolectricTestBase() {
     assert(result is AuthResult.Success)
     assert((result as AuthResult.Success).uberToken.authCode == "authCode")
   }
+
+  @Test
+  fun `test authenticate when PAR request fails should continue without metadata`() = runTest {
+    whenever(ssoLink.execute(any())).thenReturn("authCode")
+    // Mock PAR request to return error response (e.g., 500)
+    val errorResponse: Response<PARResponse> = Response.error(500, mock())
+    whenever(authService.loginParRequest(any(), any(), any(), any())).thenReturn(errorResponse)
+    val prefillInfo = PrefillInfo("email", "firstName", "lastName", "phoneNumber")
+    val authContext =
+      AuthContext(
+        AuthDestination.CrossAppSso(listOf(CrossApp.Rider)),
+        AuthType.AuthCode,
+        prefillInfo,
+      )
+    val authProvider = AuthProvider(activity, authContext, authService, codeVerifierGenerator)
+    val argumentCaptor = argumentCaptor<Map<String, String>>()
+    val result = authProvider.authenticate()
+    // Verify PAR request was attempted
+    verify(authService).loginParRequest(any(), any(), any(), any())
+    // Verify authentication continued without request_uri
+    verify(ssoLink).execute(argumentCaptor.capture())
+    assert(argumentCaptor.lastValue.containsKey(REQUEST_URI).not())
+    // Verify authentication succeeded
+    assert(result is AuthResult.Success)
+    assert((result as AuthResult.Success).uberToken.authCode == "authCode")
+  }
+
+  @Test
+  fun `test authenticate when PAR request throws exception should continue without metadata`() =
+    runTest {
+      whenever(ssoLink.execute(any())).thenReturn("authCode")
+      // Mock PAR request to throw network exception
+      whenever(authService.loginParRequest(any(), any(), any(), any()))
+        .thenThrow(RuntimeException("Network error"))
+      val prefillInfo = PrefillInfo("email", "firstName", "lastName", "phoneNumber")
+      val authContext =
+        AuthContext(
+          AuthDestination.CrossAppSso(listOf(CrossApp.Rider)),
+          AuthType.AuthCode,
+          prefillInfo,
+        )
+      val authProvider = AuthProvider(activity, authContext, authService, codeVerifierGenerator)
+      val argumentCaptor = argumentCaptor<Map<String, String>>()
+      val result = authProvider.authenticate()
+      // Verify PAR request was attempted
+      verify(authService).loginParRequest(any(), any(), any(), any())
+      // Verify authentication continued without request_uri
+      verify(ssoLink).execute(argumentCaptor.capture())
+      assert(argumentCaptor.lastValue.containsKey(REQUEST_URI).not())
+      // Verify authentication succeeded
+      assert(result is AuthResult.Success)
+      assert((result as AuthResult.Success).uberToken.authCode == "authCode")
+    }
+
+  @Test
+  fun `test authenticate with PKCE when PAR fails should still include code challenge`() = runTest {
+    whenever(ssoLink.execute(any())).thenReturn("authCode")
+    whenever(codeVerifierGenerator.generateCodeVerifier()).thenReturn("verifier")
+    whenever(codeVerifierGenerator.generateCodeChallenge("verifier")).thenReturn("challenge")
+    whenever(authService.token(any(), any(), any(), any(), any()))
+      .thenReturn(Response.success(UberToken(accessToken = "accessToken")))
+    // Mock PAR request to fail
+    val errorResponse: Response<PARResponse> = Response.error(500, mock())
+    whenever(authService.loginParRequest(any(), any(), any(), any())).thenReturn(errorResponse)
+    val prefillInfo = PrefillInfo("email", "firstName", "lastName", "phoneNumber")
+    val authContext =
+      AuthContext(AuthDestination.CrossAppSso(listOf(CrossApp.Rider)), AuthType.PKCE(), prefillInfo)
+    val authProvider = AuthProvider(activity, authContext, authService, codeVerifierGenerator)
+    val argumentCaptor = argumentCaptor<Map<String, String>>()
+    val result = authProvider.authenticate()
+    // Verify PAR request was attempted
+    verify(authService).loginParRequest(any(), any(), any(), any())
+    // Verify authentication continued with code challenge but without request_uri
+    verify(ssoLink).execute(argumentCaptor.capture())
+    assert(argumentCaptor.lastValue.containsKey(REQUEST_URI).not())
+    assert(argumentCaptor.lastValue[CODE_CHALLENGE_PARAM] == "challenge")
+    assert(argumentCaptor.lastValue[CODE_CHALLENGE_METHOD] == CODE_CHALLENGE_METHOD_VAL)
+    // Verify authentication succeeded
+    assert(result is AuthResult.Success)
+    assert((result as AuthResult.Success).uberToken.accessToken == "accessToken")
+  }
 }
diff --git a/samples/login-with-auth-code-demo/gradle.properties b/samples/login-with-auth-code-demo/gradle.properties
index a1c9d5e..794bda1 100644
--- a/samples/login-with-auth-code-demo/gradle.properties
+++ b/samples/login-with-auth-code-demo/gradle.properties
@@ -1,3 +1,3 @@
 description=Login to Uber Sample
 UBER_CLIENT_ID=insert_your_client_id_here
-UBER_REDIRECT_URI=insert_your_redirect_uri_here
\ No newline at end of file
+UBER_REDIRECT_URI=insert_your_redirect_uri_here