FAQ: How is the numbering by phase performed using various schemes?

Case A
Single parts from the first phase starting at 1000 and main parts from 100 with second phase single parts starting at 2000 and main parts from 200.
Case B
All single parts start at 1000 and main parts by phase starting with 100 for phase 1, 200 for phase 2, etc.

Case A

Case B