diff --git a/client/lib/features/scan/recognition_confirm_screen.dart b/client/lib/features/scan/recognition_confirm_screen.dart
index eb7d439..679ae9f 100644
--- a/client/lib/features/scan/recognition_confirm_screen.dart
+++ b/client/lib/features/scan/recognition_confirm_screen.dart
@@ -248,10 +248,14 @@ class _ItemTileState extends State<_ItemTile> {
             const SizedBox(width: 8),
             widget.units.isEmpty
                 ? const SizedBox(width: 48)
-                : DropdownButton<String>(
-                    value: widget.units.containsKey(widget.item.unit)
-                        ? widget.item.unit
-                        : widget.units.keys.first,
+                : Builder(builder: (builderContext) {
+                    // Reconcile item.unit with valid server codes so that the
+                    // submitted value matches what the dropdown displays.
+                    if (!widget.units.containsKey(widget.item.unit)) {
+                      widget.item.unit = widget.units.keys.first;
+                    }
+                    return DropdownButton<String>(
+                    value: widget.item.unit,
                     underline: const SizedBox(),
                     items: widget.units.entries
                         .map((e) => DropdownMenuItem(value: e.key, child: Text(e.value)))
@@ -262,7 +266,8 @@ class _ItemTileState extends State<_ItemTile> {
                         widget.onChanged();
                       }
                     },
-                  ),
+                  );
+                  }),
             IconButton(
               icon: const Icon(Icons.close),
               onPressed: widget.onDelete,
diff --git a/client/lib/features/scan/recognition_service.dart b/client/lib/features/scan/recognition_service.dart
index 590bf05..1fdbf0f 100644
--- a/client/lib/features/scan/recognition_service.dart
+++ b/client/lib/features/scan/recognition_service.dart
@@ -39,7 +39,7 @@ class RecognizedItem {
     return RecognizedItem(
       name: json['name'] as String? ?? '',
       quantity: (json['quantity'] as num?)?.toDouble() ?? 1.0,
-      unit: json['unit'] as String? ?? 'шт',
+      unit: json['unit'] as String? ?? 'pcs',
       category: json['category'] as String? ?? 'other',
       confidence: (json['confidence'] as num?)?.toDouble() ?? 0.0,
       mappingId: json['mapping_id'] as String?,