Use of control points can greatly reduce the number of manual entries needed to report production. Control points on operations serve two purposes:
When a work center is created, you must specify whether it is a control point or not. This setting will be the default value for the routing operation when a work center is associated with the operation. It is possible to overwrite the default for each operation of a routing. Any and all operations within a routing can be specified as a control point.
Backflushing is triggered automatically when you enter a quantity other than zero for quantity complete or scrapped for a posted transaction. If the operation is a control point, the system will look for preceding operations to verify whether they are control points or not. If not, then the system assumes that the preceding non-control point operations associated with that control point will also have the same quantity complete value backflushed.
When you report a scrapped quantity for a control point, the same scrapped quantity is added to the quantity complete for all prior operations that are tied to that control point.
For a production scheduled item, if scrap is reported on a non-control point operation, the quantity complete is updated for all previously associated non-control point operations and those operations will be backflushed. For a job item, if scrap is reported on a non-control point operation, only the operation reported is backflushed.
Based on how you have set up your Inventory Parameters, Items - Controls tab, Operation, and Material forms for backflushing, the system will perform the following:
All calculations and posted amounts will be based on values from the routing. The routing that is used for backflushing is dependent upon the manufacturing type.
| Manufacturing Type | Routing Used in Backflushing |
|---|---|
| Job | Job Routing |
| Production Schedule | Production Schedule Routing |
| JIT Production | Current Routing |
No employee-specific labor will be posted except on the control point operation itself, where the posting originated. The transaction for the control point operation will be posted using employee rates and hours based on the appropriate routing.
Reverse backflushing occurs when you key production transactions with a negative quantity complete amount. Materials issued to the job are moved back to inventory and labor and/or machine hours, overhead, and WIP will all be decreased.
Negative completed quantities may be manually entered for individual operations, or you may enter a negative completed quantity for an operation that is flagged as a control point.
When all production is reversed, so that the quantity complete is zero, setup hours will also be reversed.