missing # of pieces in certain sets

arathemis

Why do certain sets miss the # of pieces in their inventory?

examples (from my inventory): #5005376, #JW121801

I`m sure there are others.

stlux

Brickset syncs the inventories directly with what is found on lego.com's replacement parts list. In case parts are missing there or a set is completely absent (like the 2 you listed), the inventory on Brickset will be incomplete. 

Baby_Yoda

Parts are often excluded from the replacement service because of the particular expense or licences involved in manufacturing them. Then there's the retiring of certain sets rendering their parts irreplaceable since Lego no longer produce them at all. Of course, sometimes it's just a mistake on Lego's part. Pun intended.

stlux

@Baby_Yoda Brickset only does 1 scrape of the sets when they come out to get the inventory from Lego - they do not continuously sync as that would indeed result in inventories disappearing over time.
Well, technically I think Brickset does a 2nd scrape a little while after the set has come out, as at launch Lego's inventories are often (even more) incomplete. Somebody else/Huw might be able to add more detail.

CCC

Baby_Yoda said:

Parts are often excluded from the replacement service because of the particular expense or licences involved in manufacturing them.

This isn't down to licensing. For the most part, the licensed parts are listed on the replacement parts side if you go in through "missing parts" even if the are then missing from the section you see when going in through "buy replacements".

Baby_Yoda

So with

Baby_Yoda said:

the licences involved in manufacturing them

and

Baby_Yoda said:

the retiring of certain sets rendering their parts irreplaceable

gone, that leaves

Baby_Yoda said:

it's just a mistake on Lego's part

right? Mystery solved!

CapnRex101

I don't actually know how often Brickset searches LEGO.com for new set inventories but for promotional items we usually enter the information manually.

In this instance, I have counted the number of pieces in each of the aforementioned polybags and updated the database entries.

arathemis

thanks @CapnRex101