If you see an item on the Web Store that is grayed out, this item is currently unavailable for you to purchase. There may be a few reasons for this:

If you are trying to purchase a limited offer item or box

• These items may only be purchased a certain number of times and you have already reached this limit.

Other Reasons

• You can only hold a certain number of this item in your Item Bag (Pokémon GO) or Item Box (Monster Hunter Now) and you have already reached this limit.
  • If you have reached this limit for an item that is a part of a box then that box will be unavailable for you to purchase
• You do not have enough in-game currency to purchase this item
• Your Item Bag (Pokémon GO) or Item Box (Monster Hunter Now) is currently full