Using flushing makes posting against production orders much simpler.
Below are the most common flushing scenarios in my mind:
Flushing Method – Scenario A
Material = Backward
Work Center / Machine Center = Backward
In this scenario all components, time and output are posted when the production order is changed to finished.
Flushing Method – Scenario B
Material = Backward with RLC
Work Center / Machine Center = Manual
In this scenario the users will post the output for each operation and the corresponding components will be backward flushed based on the output quantity for the operation.
Flushing Method – Scenario C
Material – Forward
Work Center / Machine Center – Backward
In this scenario the components are posted as consumed during the release of the production order. In the release stage the consumption can be adjusted by posting additional consumption with either positive or negative quantities. The output and time is then posted when the production order is finished.
You can update the flushing method for each of the components on individual production orders as well, this means that you can have all components set to backward flushing and if for some reason you want to consume a different quantity for a component you can just change it to manual and post the consumption of that component manually.
the above information is from https://www.olofsimren.com/flushing-methods/ read the complete blog to understand the whole concept I always prefer Olof Simren for manufacturing.
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