Sheetmetal thickness is wrong in Flow
Problem
Sheetmetal part thickness is different in model and Flow (BOM)
Solution
There are two main modeling ways to create sheetmetal parts:
1 make a sketch and operation "Thin Feature" - select material (from Flow). This sets correct thickness to the part.
2 make an ordinary part by sketching, extrusions, round etc. Then selecet an appropriate face (sheetmetal face) and right click "Tangential Shelling"- set material as before. This feature is also useful for correcting false sheet thickness.