diff --git a/Diary/Diary/DiaryApp.swift b/Diary/Diary/DiaryApp.swift
index 3d677643..6f710127 100644
--- a/Diary/Diary/DiaryApp.swift
+++ b/Diary/Diary/DiaryApp.swift
@@ -9,7 +9,15 @@ struct DiaryApp: App {
     
     var body: some Scene {
         WindowGroup {
-            ContentView().ignoresSafeArea()
+            VStack {
+                if let info = Bundle.main.infoDictionary {
+                    if let diaryApiUrl = info["Diary Api Url"] as? String {
+                        Text(diaryApiUrl)
+                    }
+                }
+
+                ContentView().ignoresSafeArea()
+            }
         }
     }
 }
diff --git a/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinScreen.kt b/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinScreen.kt
index 4ac44ce7..c35f3599 100644
--- a/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinScreen.kt
+++ b/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinScreen.kt
@@ -240,7 +240,7 @@ private fun Message(
             uiState.isLoginFinish -> onLoginFinish()
             uiState.isExistEmail -> state.showMessage(existEmailMessage)
             uiState.isNetworkError -> state.showMessage(networkErrorMessage)
-            uiState.isUnknownError -> state.showMessage(unknownErrorMessage)
+            uiState.isUnknownError -> state.showMessage(uiState.message)
         }
 
         uiState.onMessageShow()
diff --git a/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinViewModel.kt b/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinViewModel.kt
index 3664738e..202de718 100644
--- a/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinViewModel.kt
+++ b/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/JoinViewModel.kt
@@ -43,7 +43,7 @@ internal class JoinViewModel(
         when (throwable) {
             is ExistEmailException -> _uiState.update { it.copy(isProgress = false, isExistEmail = true) }
             is NetworkException -> _uiState.update { it.copy(isProgress = false, isNetworkError = true) }
-            else -> _uiState.update { it.copy(isProgress = false, isUnknownError = true) }
+            else -> _uiState.update { it.copy(isProgress = false, isUnknownError = true, message = it.toString()) }
         }
     }
 
diff --git a/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/state/JoinUiState.kt b/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/state/JoinUiState.kt
index 9c316718..f5fc7f50 100644
--- a/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/state/JoinUiState.kt
+++ b/app/feature/account/src/commonMain/kotlin/io/github/taetae98coding/diary/feature/account/join/state/JoinUiState.kt
@@ -6,6 +6,7 @@ internal data class JoinUiState(
     val isExistEmail: Boolean = false,
     val isNetworkError: Boolean = false,
     val isUnknownError: Boolean = false,
+    val message: String = "",
     val onMessageShow: () -> Unit = {},
 ) {
     val hasMessage = isLoginFinish || isExistEmail || isNetworkError || isUnknownError