You will want to have your dealer let you know these stages.
1100 Dealer has entered your order in the Workbench software (That's all it means)
2000 accepted by GM (GM guarantees it will be built)
3000 Order Accepted by Production Control (parts are ordered)
3300 Order Scheduled for Production (TPW available from your dealer
3400 Order Broadcast (Internal Plant Order Produced)
3800 Vehicle Produced (Partial vin available)
Below are different situations you may face.
4000 Vehicle Available to Ship
4104 Bailment Invoice Created
4B00 ORDER BAYED; VEHICLE IS WAITING ON TRANSPORTATION OR PULLED FOR QUALITY CONTROL
4106 Bailment Released
4150 Vehicle Invoiced
4200 Vehicle Shipped from Bowling Green