By default, overlapping deductions are allowed on a case. This means that more than one deduction of the same type covering the same time period can be activated on a case. For example, a third party deduction used to deduct electricity payments can be added multiple times to a product delivery case with overlapping start and end dates.
Configuration is available which allows the agency to prevent overlapping deductions. This can be configured per deduction for a particular product only, or for all products which use that deduction. If a deduction has been configured to not allow overlapping deductions, a validation will be displayed if a user tries to activate a deduction which already exists on the case for an overlapping time period. This can be configured for all categories of deductions (applied, un applied and third party).