diff --git a/client/src/components/NewSaleForm.tsx b/client/src/components/NewSaleForm.tsx
index cbea827..1a8e823 100644
--- a/client/src/components/NewSaleForm.tsx
+++ b/client/src/components/NewSaleForm.tsx
@@ -120,8 +120,8 @@ export default function NewSaleForm({ onSaveSale }: NewSaleFormProps) {
         lieuNaissance: data.lieuNaissance || undefined,
         typeIdentite: data.typeIdentite,
         numeroIdentite: data.numeroIdentite,
-        autoriteDelivrance: data.autoriteDelivrance || undefined,
-        dateDelivrance: data.dateDelivrance || undefined,
+        autoriteDelivrance: data.autoriteDelivrance,
+        dateDelivrance: data.dateDelivrance,
         photoRecto: photos.recto,
         photoVerso: photos.verso,
       };
@@ -424,7 +424,7 @@ export default function NewSaleForm({ onSaveSale }: NewSaleFormProps) {
                     name="autoriteDelivrance"
                     render={({ field }) => (
                       <FormItem>
-                        <FormLabel>Autorité de délivrance</FormLabel>
+                        <FormLabel>Autorité de délivrance <span className="text-destructive">*</span></FormLabel>
                         <FormControl>
                           <Input placeholder="Préfecture, Mairie, etc." {...field} />
                         </FormControl>
@@ -437,7 +437,7 @@ export default function NewSaleForm({ onSaveSale }: NewSaleFormProps) {
                     name="dateDelivrance"
                     render={({ field }) => (
                       <FormItem>
-                        <FormLabel>Date de délivrance</FormLabel>
+                        <FormLabel>Date de délivrance <span className="text-destructive">*</span></FormLabel>
                         <FormControl>
                           <Input type="date" {...field} />
                         </FormControl>
diff --git a/client/src/lib/validation.ts b/client/src/lib/validation.ts
index 0b9d0ba..1f30c2d 100644
--- a/client/src/lib/validation.ts
+++ b/client/src/lib/validation.ts
@@ -24,7 +24,9 @@ export function validateRequiredFields(formData: any): string[] {
     { key: 'prenom', label: 'Prénom' },
     { key: 'dateNaissance', label: 'Date de naissance' },
     { key: 'typeIdentite', label: 'Type de pièce d\'identité' },
-    { key: 'numeroIdentite', label: 'Numéro de pièce d\'identité' }
+    { key: 'numeroIdentite', label: 'Numéro de pièce d\'identité' },
+    { key: 'autoriteDelivrance', label: 'Autorité de délivrance' },
+    { key: 'dateDelivrance', label: 'Date de délivrance' }
   ];
   
   return requiredFields
diff --git a/client/src/types/sale.ts b/client/src/types/sale.ts
index 53a085b..ae3e546 100644
--- a/client/src/types/sale.ts
+++ b/client/src/types/sale.ts
@@ -21,8 +21,8 @@ export interface Sale {
   // Identité
   typeIdentite: string;
   numeroIdentite: string;
-  autoriteDelivrance?: string;
-  dateDelivrance?: string;
+  autoriteDelivrance: string;
+  dateDelivrance: string;
   
   // Photos
   photoRecto?: string;