diff --git a/app/src/main/java/org/linphone/ui/assistant/viewmodel/AccountLoginViewModel.kt b/app/src/main/java/org/linphone/ui/assistant/viewmodel/AccountLoginViewModel.kt
index 6f6055921..3cd685458 100644
--- a/app/src/main/java/org/linphone/ui/assistant/viewmodel/AccountLoginViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/assistant/viewmodel/AccountLoginViewModel.kt
@@ -26,13 +26,16 @@ import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
 import org.linphone.core.Account
 import org.linphone.core.AuthInfo
 import org.linphone.core.Core
 import org.linphone.core.CoreListenerStub
 import org.linphone.core.Factory
+import org.linphone.core.Reason
 import org.linphone.core.RegistrationState
 import org.linphone.core.tools.Log
+import org.linphone.utils.AppUtils
 import org.linphone.utils.Event
 
 class AccountLoginViewModel @UiThread constructor() : ViewModel() {
@@ -82,8 +85,19 @@ class AccountLoginViewModel @UiThread constructor() : ViewModel() {
                 } else if (state == RegistrationState.Failed) {
                     registrationInProgress.postValue(false)
                     core.removeListener(this)
-                    // TODO: show translated string
-                    accountLoginErrorEvent.postValue(Event(message))
+
+                    val error = when (account.error) {
+                        Reason.Forbidden -> {
+                            AppUtils.getString(R.string.assistant_account_login_forbidden_error)
+                        }
+                        else -> {
+                            AppUtils.getFormattedString(
+                                R.string.assistant_account_login_error,
+                                account.error.toInt()
+                            )
+                        }
+                    }
+                    accountLoginErrorEvent.postValue(Event(error))
 
                     Log.e("$TAG Account failed to REGISTER [$message], removing it")
                     core.removeAuthInfo(newlyCreatedAuthInfo)
diff --git a/app/src/main/java/org/linphone/ui/assistant/viewmodel/ThirdPartySipAccountLoginViewModel.kt b/app/src/main/java/org/linphone/ui/assistant/viewmodel/ThirdPartySipAccountLoginViewModel.kt
index ac148db4d..eb5cb7a90 100644
--- a/app/src/main/java/org/linphone/ui/assistant/viewmodel/ThirdPartySipAccountLoginViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/assistant/viewmodel/ThirdPartySipAccountLoginViewModel.kt
@@ -26,14 +26,17 @@ import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
 import org.linphone.core.Account
 import org.linphone.core.AuthInfo
 import org.linphone.core.Core
 import org.linphone.core.CoreListenerStub
 import org.linphone.core.Factory
+import org.linphone.core.Reason
 import org.linphone.core.RegistrationState
 import org.linphone.core.TransportType
 import org.linphone.core.tools.Log
+import org.linphone.utils.AppUtils
 import org.linphone.utils.Event
 
 class ThirdPartySipAccountLoginViewModel @UiThread constructor() : ViewModel() {
@@ -93,8 +96,19 @@ class ThirdPartySipAccountLoginViewModel @UiThread constructor() : ViewModel() {
                 } else if (state == RegistrationState.Failed) {
                     registrationInProgress.postValue(false)
                     core.removeListener(this)
-                    // TODO: show translated string
-                    accountLoginErrorEvent.postValue(Event(message))
+
+                    val error = when (account.error) {
+                        Reason.Forbidden -> {
+                            AppUtils.getString(R.string.assistant_account_login_forbidden_error)
+                        }
+                        else -> {
+                            AppUtils.getFormattedString(
+                                R.string.assistant_account_login_error,
+                                account.error.toInt()
+                            )
+                        }
+                    }
+                    accountLoginErrorEvent.postValue(Event(error))
 
                     Log.e("$TAG Account failed to REGISTER [$message], removing it")
                     core.removeAuthInfo(newlyCreatedAuthInfo)
@@ -118,7 +132,7 @@ class ThirdPartySipAccountLoginViewModel @UiThread constructor() : ViewModel() {
             loginEnabled.value = isLoginButtonEnabled()
         }
 
-        // TODO: handle formatting errors
+        // TODO: handle formatting errors ?
 
         availableTransports.add(UDP)
         availableTransports.add(TCP)
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 16d7cc43c..58f29aa83 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -129,6 +129,8 @@
     <string name="assistant_account_register_server_error">Failed to create account, error %i</string>
     <string name="assistant_account_register_push_notification_not_received_error">Push notification with auth token not received in 5 seconds, please try again later</string>
     <string name="assistant_account_register_unexpected_error">Unexpected error occurred, please try again later</string>
+    <string name="assistant_account_login_forbidden_error">Wrong username or password</string>
+    <string name="assistant_account_login_error">Failed to login: error code is %i</string>
 
     <string name="drawer_menu_manage_account">Manage the profile</string>
     <string name="drawer_menu_account_connection_status_connected">Connected</string>