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.
397 pieces in 136 part and color combinations, plus 1 minifigure.
The official piece count includes the 4 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 2 x 10Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 4 with GrooveBlack ×7Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Tile 1 x 6 with GrooveBlack ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 7 TeethLight Bluish GrayPart 50340Element 6266209×2
Plate 1 x 12Light Bluish GrayPart 60479Element 4514846×1
Plate 2 x 12Light Bluish GrayPart 2445Element 4211360×1
Plate Special 1 x 2 with Clip Horizontal on SideLight Bluish GrayPart 11476Element 6313114 or 6028812×2
Tile 2 x 2 with GrooveLight Bluish GrayPart 3068bElement 4211413×1
Blue Violet
10 pieces
Brick Round 2 x 2 Dome Top, Vented StudBlue VioletPart 3262Element 6602213×3
Plant, Leaves, Round 2 x 2 x 2/3 with + Axle Hole and 4 Leaf ExtensionsBlue VioletPart 15469Element 6602214×3
Plate 1 x 6Blue VioletPart 3666Element 6605535×4
Dark Azure
6 pieces
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Dark AzurePart 15573Element 6151671×1
Tile 1 x 2 with GrooveDark AzurePart 3069bElement 6151659×1
Tile 1 x 2 with Stud Notch RightDark AzurePart 5092Element 6551378×1
Tile 1 x 3Dark AzurePart 63864Element 6412744×1
Tile 45° Cut 2 x 2 (Triangle)Dark AzurePart 35787Element 6369497×2
Dark Purple
6 pieces
Tile 1 x 1 with GrooveDark PurplePart 3070bElement 6167457×1
Tile 1 x 2 with GrooveDark PurplePart 3069bElement 4613192×1
Tile 1 x 2 with Stud Notch LeftDark PurplePart 5091Element 6596901×1
Tile 2 x 2 with GrooveDark PurplePart 3068bElement 6057386 or 4225177×1
Tile 45° Cut 2 x 2 (Triangle)Dark PurplePart 35787Element 6424624×2
Lavender
4 pieces
Plant, Flower, Plate Round 1 x 1 with 5 PetalsLavenderPart 24866Element 6214235×2
Plate 4 x 12LavenderPart 3029Element 6616749×2
Reddish Brown
4 pieces
Bracket 1 x 2 - 2 x 2 InvertedReddish BrownPart 99207Element 6226436×1
Container Box 2 x 2 x 1 1/3 with HingeReddish BrownPart 7711Element 6628670×1
Lid for Box 2 x 2, HingedReddish BrownPart 7712Element 6628668×1
Tile Special 1 x 2 with HandleReddish BrownPart 2432Element 4211219×1
Trans-Black
3 pieces
Bar 1L / Stem with 3 Sprouts/ProngsTrans-BlackPart 68211Element 6628666×3
Dark Blue
2 pieces
Technic Ball JointDark BluePart 32474Element 6498566 or 6337531×2
Dark Pink
2 pieces
Sports Roller SkateDark PinkPart 11253Element 6346263 or 6040502×1
Tile 2 x 2 Curved, MacaroniDark PinkPart 27925Element 6525972 or 6331807×1
Light Nougat
1 piece
Hand, Thing with Nougat Stitched Scars PrintLight NougatPart 5786pr0001Element 6501591×1
Lime
1 piece
Tile 3 x 3 Curved, MacaroniLimePart 79393Element 6517742×1
Orange
1 piece
Tile Round 1 x 1OrangePart 98138Element 6284582 or 6009459×1
Trans-Clear
1 piece
Brick Special 1 x 1 with HeadlightTrans-ClearPart 4070Element 6514231 or 6244796×1
White
1 piece
Tile 1 x 2 with GrooveWhitePart 3069bElement 6548264 or 306901×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 76787-1[No Color/Any Color]Part 10119035Element 6629400×1
Minifigures
1 figure
Wednesday, JacketMinifigure, 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.