Serial number tracking at an operation
The Serialization Start Op Seq flag in the Routing Details window indicates that item tracking with serial numbers begins at this particular operation. This enables you to track items using serial numbers prior to the completed transaction.
Important: You must check this field to use serial number tracking for Oracle Work in Process transactions.

Completion Subinventory and Locator Fields
In a routing, you can define the completion subinventory and locator where you store finished assemblies upon completion. When you define a job or repetitive schedule, Work in Process uses these values as the default, and you can change the completion subinventory and locator if necessary. Upon completion of assemblies, the completion subinventory and locator you defined for the job and repetitive schedule is the default, and you can change these values if necessary