Reject Percent (%) is a production metric that is used when part(s) cannot be reworked and can no longer be used in production. Some companies may call these parts scrap or spoilage, but for the purpose of production metrics, we will refer to these as Rejects in L2L.
The calculation = Reject / (Actual + Reject)
If selected in the production settings, you will see this metric displayed in the following places:
- Operator Portal / Pitch Boards
- Also In many of the production reports, like the Rework / Reject Category Pareto, as an example
Rejects are captured on the operator portal through the Rework / Reject Categories when entered in the pitch information.
In order to capture the Rejects, you must first add the Rework / Reject category in the production module and label it as a Reject in the drop-down as a Reject category. (See Below)
As you can see in the categories, you can also select a category for a Rework or Rerun as well, depending on how your facility processes these types of parts.
Note: keep in mind on the metrics for Rejects and Rework, when you add this information in the pitch details, you will see a combined metric (%) for both Rework and Rejects for all categories selected and these are reflected on the Operator Portal. The example below shows this metric on the left.
Reject percent metric (see far right) will take only the number (%) from the categories selected as Reject and reflect that percentage.
Note: Some people like to do the math on their calculator using the metrics on the screen to double-check the calculation. For Reject Percent metric, you will have to first understand how many of those parts in the Rework / Reject column in the operator portal are categorized as Rejects.
You could pull this information from the Rework / Reject Category Pareto report and select the Reject/Rework/Rerun button and look at the number of Rejects.