I think the build sheet shows up once the build is completed by the factory (right before it gets turned over to the body vendor for accessories) That's how mine just worked. It is basically a document accounting for everything in the build at the main factory location. After the build sheet was generated, mine is sitting with a JB code (at body vendor). At that facility they do the add ons like spray-in liner, running boards, etc. Once that is complete, then the window sticker will generate for the fully completed build. I have been sitting at JB since 5/6 with a build sheet but no window sticker yet (obviously the spray-in liner and running boards haven't been completed yet)