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.
1,106 pieces in 439 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.
Tile Round 1 x 1White ×1Trans-Clear ×1Trans-Clear is see-through: hold the piece up to a light.
Brick Round 1 x 1 Open StudYellow ×1Trans-Yellow ×1Trans-Yellow is see-through: hold the piece up to a light.
Brick Round 1 x 1 Open StudReddish Brown ×2Dark Brown ×6Reddish Brown is redder and lighter than Dark Brown.
Equipment CandlestickReddish Brown ×1Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Brick 2 x 2Tan ×1Dark Tan ×1Tan is lighter than Dark Tan.
Brick Sloped 45° 2 x 1 with Bottom PinTan ×1Dark Tan ×2Tan is lighter than Dark Tan.
2 more look-alike pairs
Brick Sloped 45° 2 x 2Tan ×2Dark Tan ×3Tan is lighter than Dark Tan.
Plate Special 1 x 2 Side Handle [Free Ends]Tan ×1Dark Tan ×1Tan is lighter than Dark Tan.
Sticker Sheet for Set 42631-1[No Color/Any Color]Part 10107623Element 6480923×1
Minifigures
5 figures
Jonathan - Adventure Camp, Olive Green Pants, Life VestMinifigure, checked as a whole figure×1
Aliya - Adventure Camp, Bright Light Blue Shorts, Life VestMinifigure, checked as a whole figure×1
Olly - Adventure Camp, Bright Light Orange Shorts, Coral BeanieMinifigure, checked as a whole figure×1
Jamila - Adventure Camp, Dark Purple PantsMinifigure, checked as a whole figure×1
Leo - Adventure Camp, Coral PantsMinifigure, 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.