Hi Oscar,
The inspection lot will be created based on the Material master-> quality view settings. If you are creating an order for a material, and 03 inspection type is assigned on it, system will create the inspection lot.
04 inspection is after the manufacturing is complete, whereas 03 is in-process (inspections during production process).
If you don't assign an Inspection plan and only activated 03 inspection type, then the inspection lot will be created with status CRTD. If there's a valid inspection plan, then the lot will have status REL.
If the MICs are also assigned to inspection plan, then user will be able to record result.
Hope it's clear
Thanks
Prem