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.
923 pieces in 300 part and color combinations, plus 5 minifigures.
The official piece count includes the 22 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Plate Round 1 x 1 with Open StudWhite ×1Trans-Clear ×1Trans-Clear is see-through: hold the piece up to a light.
Tile 2 x 3Black ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Sticker Sheet for Set 75864-1[No Color/Any Color]Part 10109917Element 6510435×1
Supports, Girders and Cranes
1 piece
Support Round 2 x 2 x 2 Stand with Reinforced UndersideDark Bluish GrayPart 19798Element 6106283×1
Technic Panels
1 piece
Technic Panel Car Mudguard 13 x 2 x 5Dark BluePart 71689Element 6513730×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
5 figures
Elphaba, Black Hat, CapeMinifigure, checked as a whole figure×1
Glinda, Bright Pink GownMinifigure, checked as a whole figure×1
Madame Morrible, Dark Green DressMinifigure, checked as a whole figure×1
Fiyero, Dark Blue SuitMinifigure, checked as a whole figure×1
The Wizard, MinidollMinifigure, checked as a whole figure×1
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.