Container Restrictions

bool bCanAdd = InventoryComponent->CanItemGoInContainer(ItemInstance);

Event Can Item Go In Container
   Item Instance: [Input]
   ↓
   [Check item tags]
   ↓
   Return: true/false

struct FContainerSlotSettings
{
    bool bRestrictSlot;                     // Enable restrictions
    FGameplayTagQuery RestrictionQuery;     // Tag query filter
    TArray<FName> EnabledItems;             // Whitelist
    TArray<FName> DisabledItems;            // Blacklist
};

Slot Settings:
   [0]:
      Restrict Slot: true
      Restriction Query: Has Tag "Item.Category.Weapon"
      Enabled Items: []
      Disabled Items: []

Slot Settings:
   [0]:
      Restrict Slot: true
      Restriction Query: None
      Enabled Items: [HealthPotion, ManaPotion, StaminaPotion]
      Disabled Items: []

Slot Settings:
   [All Slots]:
      Restrict Slot: true
      Restriction Query: Not Has Tag "Item.Category.Quest"
      Enabled Items: []
      Disabled Items: [QuestItem_SpecialKey]

bool bCanAdd = InventoryComponent->CanItemGoInSlot(ItemInstance, SlotIndex);
if (!bCanAdd)
{
    // Show error message
    ShowNotification("This item cannot be placed here");
}