You can make the following changes to your discrete jobs:
Change the name of existing jobs in the Discrete Jobs window, but only if the WIP:Job Name Updatable profile option is set. See: Profile Options.
Change dates, quantities, bills, statuses, and routings. See: Changing Discrete Jobs, Rescheduling Discrete Jobs, and Mass Changing Discrete Job Statuses.
Add, update, and delete operations. See: Adding and Updating Operations, Deleting Operations, and Midpoint Rescheduling.
Add, update, and delete material requirements. See: Adding and Updating Material Requirements and Deleting Material Requirements.
Add, change, and delete resource requirements. See: Adding and Updating Resource Requirements and Deleting Resource Requirements.
See Implementation of ECO's on Discrete Jobs and Repetitive Schedules in the Oracle Engineering User's Guide.
Add, change, and delete WIP Attachments. See: Attaching Files to Jobs, Schedules, and Operations.
If you have Oracle Shop Floor Management installed, you can create and update lot based jobs. The entire quantity of a lot based job moves on the basis of the network routing.
Other Sources
See: Creating a Lot Based Job in Oracle Shop Floor Management.