Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
Clikits Icon, Square 2 x 2 Small, with Hole [Frosted]Trans-Light BluePart 45469aElement 4197689×1
Clikits Icon, Star 2 x 2 Small with Pin [Frosted]Trans-Light BluePart 45463Element 4197678×2
Clikits Icon, Star 2 x 2 Small, with HoleTrans-Light BluePart 46286Element 4197742×2
Clikits Rectangle 2 x 5 with Rounded Ends and 2 HolesTrans-Light BluePart 46607Element 4236657 or 4198576×3
Clikits Bead, Ring, Thick Small with HoleTrans-Neon GreenPart 46296Element 4199090×1
Clikits Icon, Square 2 x 2 Large with PinTrans-Neon GreenPart 45466Element 4199067×1
Clikits Memo Pad with 1 Hole[No Color/Any Color]Part 46849Element 4200468×2
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
older or second-hand sets.
Keep a record
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick
pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.