Data Clearing Details

Normally, all data in the target unit (except for the manual adjustments tag data) is cleared out prior to processing. This ensures that the flow-through factor procedure can be executed multiple times resulting in the same answer. The flow-through factor procedure increments the data for each source unit on top of the data in the target unit. If the target numbers do not start at zero, the flow-through factor procedure will add numbers on top of themselves.

Caution: If existing data is not cleared first from the target unit and a tag is selected for both exclude from clearing and summarization, its detail in the target unit will be deleted as an override to the clearing tag exclusion. The summarization tag designation takes priority over the clearing exclusion. The user is prompted with a warning when this occurs, but system is not prevented from clearing the data.

Exclusion tags have two functions: