diff --git a/apps/graph/base.de.i18n b/apps/graph/base.de.i18n
index e2c98ce08..fd22fa05a 100644
--- a/apps/graph/base.de.i18n
+++ b/apps/graph/base.de.i18n
@@ -20,3 +20,5 @@ NoIntersectionFound = "Kein Schnittpunkt gefunden"
 DerivativeFunctionColumn = "Spalte der Ableitungsfunktion"
 HideDerivativeColumn = "Ableitungsfunktion ausblenden"
 AllowedCharactersAZaz09 = "Erlaubte Zeichen: A-Z, a-z, 0-9, _"
+ReservedName = "Nom réservé"
+NameCannotStartWithNumber = "Un nom ne peut pas commencer par un chiffre"
diff --git a/apps/graph/base.en.i18n b/apps/graph/base.en.i18n
index 9c65251df..36f2820dd 100644
--- a/apps/graph/base.en.i18n
+++ b/apps/graph/base.en.i18n
@@ -20,3 +20,5 @@ NoIntersectionFound = "No intersection found"
 DerivativeFunctionColumn = "Derivative function column"
 HideDerivativeColumn = "Hide the derivative function"
 AllowedCharactersAZaz09 = "Allowed characters: A-Z, a-z, 0-9, _"
+ReservedName = "Reserved name"
+NameCannotStartWithNumber = "A name cannot start with a number"
diff --git a/apps/graph/base.es.i18n b/apps/graph/base.es.i18n
index 9d3c4d2ed..6386083e2 100644
--- a/apps/graph/base.es.i18n
+++ b/apps/graph/base.es.i18n
@@ -20,3 +20,5 @@ NoIntersectionFound = "Ninguna intersección encontrada"
 DerivativeFunctionColumn = "Columna de la derivada"
 HideDerivativeColumn = "Ocultar la derivada"
 AllowedCharactersAZaz09 = "Caracteres permitidos : A-Z, a-z, 0-9, _"
+ReservedName = "Nombre reservado"
+NameCannotStartWithNumber = "Un nombre no puede empezar con un número"
diff --git a/apps/graph/base.fr.i18n b/apps/graph/base.fr.i18n
index a5fb461a9..b27e0ee06 100644
--- a/apps/graph/base.fr.i18n
+++ b/apps/graph/base.fr.i18n
@@ -20,3 +20,5 @@ NoIntersectionFound = "Aucune intersection trouvée"
 DerivativeFunctionColumn = "Colonne de la fonction derivee"
 HideDerivativeColumn = "Masquer la fonction derivee"
 AllowedCharactersAZaz09 = "Caractères autorisés : A-Z, a-z, 0-9, _"
+ReservedName = "Nom réservé"
+NameCannotStartWithNumber = "Un nom ne peut pas commencer par un chiffre"
diff --git a/apps/graph/base.pt.i18n b/apps/graph/base.pt.i18n
index 4917fa369..1c702aee8 100644
--- a/apps/graph/base.pt.i18n
+++ b/apps/graph/base.pt.i18n
@@ -20,3 +20,5 @@ NoIntersectionFound = "Nenhuma interseção encontrada"
 DerivativeFunctionColumn = "Coluna da funcao derivada"
 HideDerivativeColumn = "Esconder funcao derivada"
 AllowedCharactersAZaz09 =  "Caracteres permitidos : A-Z, a-z, 0-9, _"
+ReservedName = "Nome reservado"
+NameCannotStartWithNumber = "Um nome não pode começar com um número"
diff --git a/apps/graph/list/storage_list_controller.cpp b/apps/graph/list/storage_list_controller.cpp
index ea29df9ec..9cdbbec20 100644
--- a/apps/graph/list/storage_list_controller.cpp
+++ b/apps/graph/list/storage_list_controller.cpp
@@ -58,7 +58,8 @@ bool StorageListController::textFieldDidFinishEditing(TextField * textField, con
   GlobalContext::DestroyRecordsBaseNamedWithoutExtension(baseName, GlobalContext::funcExtension /*TODO store elsewhere?*/);
 
   // Set the name
-  Ion::Storage::Record::ErrorStatus error =  StorageFunction::BaseNameCompliant(baseName) ? modelStore()->recordAtIndex(m_selectableTableView.selectedRow()).setBaseNameWithExtension(baseName, GlobalContext::funcExtension /*TODO store elsewhere?*/) : Ion::Storage::Record::ErrorStatus::NonCompliantName;
+  StorageFunction::NameNotCompliantError nameError = StorageFunction::NameNotCompliantError::None;
+  Ion::Storage::Record::ErrorStatus error = StorageFunction::BaseNameCompliant(baseName, &nameError) ? modelStore()->recordAtIndex(m_selectableTableView.selectedRow()).setBaseNameWithExtension(baseName, GlobalContext::funcExtension /*TODO store elsewhere?*/) : Ion::Storage::Record::ErrorStatus::NonCompliantName;
 
   // Handle any error
   if (error == Ion::Storage::Record::ErrorStatus::None) {
@@ -85,7 +86,15 @@ bool StorageListController::textFieldDidFinishEditing(TextField * textField, con
   } else if (error == Ion::Storage::Record::ErrorStatus::NameTaken) {
     app()->displayWarning(I18n::Message::NameTaken);
   } else if (error == Ion::Storage::Record::ErrorStatus::NonCompliantName) {
-    app()->displayWarning(I18n::Message::AllowedCharactersAZaz09);
+    assert(nameError != StorageFunction::NameNotCompliantError::None);
+    if (nameError == StorageFunction::NameNotCompliantError::CharacterNotAllowed) {
+      app()->displayWarning(I18n::Message::AllowedCharactersAZaz09);
+    } else if (nameError == StorageFunction::NameNotCompliantError::NameCannotStartWithNumber) {
+      app()->displayWarning(I18n::Message::NameCannotStartWithNumber);
+    } else {
+      assert(nameError == StorageFunction::NameNotCompliantError::ReservedName);
+      app()->displayWarning(I18n::Message::ReservedName);
+    }
   } else {
     assert(error == Ion::Storage::Record::ErrorStatus::NotEnoughSpaceAvailable);
     app()->displayWarning(I18n::Message::NameTooLong);
@@ -106,6 +115,13 @@ bool StorageListController::textFieldShouldFinishEditing(TextField * textField,
   return event == Ion::Events::Up || event == Ion::Events::Down || Shared::TextFieldDelegate::textFieldShouldFinishEditing(textField, event);
 }
 
+bool StorageListController::textFieldDidReceiveEvent(TextField * textField, Ion::Events::Event event) {
+  if (textField->isEditing() && textField->shouldFinishEditing(event)) {
+    return false;
+  }
+  return Shared::TextFieldDelegate::textFieldDidReceiveEvent(textField, event);
+}
+
 StorageListParameterController * StorageListController::parameterController() {
   return &m_parameterController;
 }
diff --git a/apps/graph/list/storage_list_controller.h b/apps/graph/list/storage_list_controller.h
index 7ae7ef527..eabe0c52f 100644
--- a/apps/graph/list/storage_list_controller.h
+++ b/apps/graph/list/storage_list_controller.h
@@ -20,6 +20,7 @@ public:
   bool textFieldDidFinishEditing(TextField * textField, const char * text, Ion::Events::Event event) override;
   bool textFieldDidAbortEditing(TextField * textField) override;
   bool textFieldShouldFinishEditing(TextField * textField, Ion::Events::Event event) override;
+  bool textFieldDidReceiveEvent(TextField * textField, Ion::Events::Event event) override;
 private:
   constexpr static int k_maxNumberOfDisplayableRows = 5;
   Shared::StorageListParameterController * parameterController() override;
diff --git a/apps/shared/storage_function.cpp b/apps/shared/storage_function.cpp
index 11f8cb0df..a2e4d403c 100644
--- a/apps/shared/storage_function.cpp
+++ b/apps/shared/storage_function.cpp
@@ -11,11 +11,16 @@ namespace Shared {
 
 char StorageFunction::k_parenthesedArgument[]("(x)");
 
-bool StorageFunction::BaseNameCompliant(const char * baseName) {
-  if (baseName[0] == 0 || (baseName[0] >= '0' && baseName[0] <= '9')) {
-    // The name cannot be empty nor start with a number
+bool StorageFunction::BaseNameCompliant(const char * baseName, NameNotCompliantError * error) {
+  assert(baseName[0] != 0);
+  if (baseName[0] >= '0' && baseName[0] <= '9') {
+    // The name cannot start with a number
+    if (error != nullptr) {
+      *error = NameNotCompliantError::NameCannotStartWithNumber;
+    }
     return false;
   }
+
   const char * currentChar = baseName;
 
   // The name should only have allowed characters
@@ -23,7 +28,11 @@ bool StorageFunction::BaseNameCompliant(const char * baseName) {
     if (!((*currentChar >= 'A' && *currentChar <= 'Z')
         || (*currentChar >= 'a' && *currentChar <= 'z')
         || (*currentChar >= '0' && *currentChar <= '9')
-        || *currentChar == '_')) {
+        || *currentChar == '_'))
+    {
+      if (error != nullptr) {
+        *error = NameNotCompliantError::CharacterNotAllowed;
+      }
       return false;
     }
     currentChar++;
@@ -31,6 +40,9 @@ bool StorageFunction::BaseNameCompliant(const char * baseName) {
 
   // The name should not be a reserved name
   if (Parser::IsReservedName(baseName, strlen(baseName))) {
+    if (error != nullptr) {
+      *error = NameNotCompliantError::ReservedName;
+    }
     return false;
   }
   return true;
diff --git a/apps/shared/storage_function.h b/apps/shared/storage_function.h
index 858adc1f2..18a3591f6 100644
--- a/apps/shared/storage_function.h
+++ b/apps/shared/storage_function.h
@@ -8,10 +8,16 @@ namespace Shared {
 
 class StorageFunction : public StorageExpressionModel {
 public:
+  enum class NameNotCompliantError {
+    None = 0,
+    CharacterNotAllowed,
+    NameCannotStartWithNumber,
+    ReservedName
+  };
   constexpr static int k_parenthesedArgumentLength = 3;
   static char k_parenthesedArgument[k_parenthesedArgumentLength+1];
   constexpr static int k_maxNameWithArgumentSize = Poincare::SymbolAbstract::k_maxNameSize + k_parenthesedArgumentLength; /* Function name and null-terminating char + "(x)" */;
-  static bool BaseNameCompliant(const char * baseName);
+  static bool BaseNameCompliant(const char * baseName, NameNotCompliantError * error = nullptr);
 
   // Constructors
   StorageFunction(Ion::Storage::Record record) : StorageExpressionModel(record){}