Overview of Net Change Replan (MRP and Supply Chain Planning Help)


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Overview of Net Change Replan

You can use Planner Workbench to replan manual changes to specific orders, the addition of new supply and demand records, and all items affected by those changes. Net Change Replan is a powerful "what-if" analysis feature that allows you to update a material plan by planning just the items you have changed in the Planner Workbench. The replanning is based on the snapshot data gathered during the original planning run and the changes you have made with the Planner Workbench. No other transactions, such as receipts in Oracle Inventory, are considered in the replanning process. You also have the ability to implement the changes recommended by net change replan.

You can prepare a modified plan by:

adding firm planned orders

adding new demand

modifying due dates or quantities of existing demand entries or firm planned orders

modifying due dates of work orders or purchase orders

firming or unfirming existing work orders and purchase orders

cancelling existing work orders and purchase orders

modifying capacity for a specific resource

modifying alternate BOM and alternate designators for firm planned orders

Note: You cannot replan changes to supply for repetitive items.

Replanning is based on the snapshot data gathered during the original planning run, including item, bill of material, and sourcing information (if you are a Supply Chain Planning user). Because the replan does not update this information with new transactions, you can maintain sets of alternative scenarios, examine the effects of different changes and implement the changes that best meet your business requirements.

Warning: Until you release your order or schedule, Net Change Replan will change the item status back to that in effect at the last planning run. It will also base any new recommendations on the original snapshot data. Net Change Replan will correctly replan changes to items only after the items have been released.

Batch mode planner

Batch mode allows you to communicate directly with the database while making and replanning your changes. While frequent replanning can place an excessive load on system resources, batch mode gives other users access to the plan while you are performing simulations. Batch mode is particularly useful when you want to complete a single replanning cycle.

Online planner

The online planner allows you to simulate and replan manual changes to supply and demand records without increasing database traffic. Starting an online session loads all planning data into memory, afterwards, you can make changes to that data, then replan the changes to see their effect on the rest of the plan. You can implement and release your changes from within the session, or you can make changes and replan as many times as necessary before the release.

As a simulation tool, the online planner quickly allows you to see the effect of the changes you make in the Planner Workbench. As an implementation tool, it reduces unnecessary database transactions and offers rapid plan revision and execution. As a monitoring tool, it generates the full set of exception messages following a replan - it also allows you to save the exceptions generated by previous sessions, offering you feedback on successive planning decisions.

The online planner is particularly useful when performing frequent simulation on a single plan. In online mode, you can do this without suffering a significant loss in performance.

However, there are three restrictions to using the online planner. You cannot make changes to either item attributes or plan options, the online planner will not evaluate capacity constraints, and it will lock all other users out of the plan while the session is active.

Overview of Net Change Replan

Batch mode planner

Online planner

See Also