diff --git a/TeleBot/TeleBot/UI/MenuBuilder.cs b/TeleBot/TeleBot/UI/MenuBuilder.cs
index 692bf2a..090f003 100644
--- a/TeleBot/TeleBot/UI/MenuBuilder.cs
+++ b/TeleBot/TeleBot/UI/MenuBuilder.cs
@@ -498,7 +498,19 @@ namespace TeleBot.UI
             }
 
             // Add confirm button when selections are complete
-            bool canConfirm = quantity == 1 ? selectedVariants.Count == 1 : selectedVariants.Count == quantity;
+            // For single items: need one selection from each variant type
+            // For multi-buy: need total selections == quantity
+            bool canConfirm;
+            if (quantity == 1)
+            {
+                // Check if all variant types have at least one selection
+                canConfirm = variantGroups.All(g => g.Any(v => selectedVariants.Contains(v.Name)));
+            }
+            else
+            {
+                // Multi-buy: need total selections == quantity
+                canConfirm = selectedVariants.Count == quantity;
+            }
 
             if (canConfirm)
             {