SOP
Engineering
SOP (Start of Production)
Start of Production
Milestone at which regular series production officially begins.
Examples
- 01SOP for the new compact car is planned for 1 March, after which units are built for customers, not for testing.
- 02At the final gate, management reviews launch readiness, capacity verification and part approvals before confirming the SOP date.
- 03Because two supplier parts are not yet approved, SOP is moved by two weeks rather than starting with temporary parts.