When a deduction type is associated with a product, it inherits any information that was configured as part of deduction administration including whether overlapping deductions are allowed on a case. This value can be subsequently changed by a user.
If configured to allow for overlapping deductions, more than one deduction of the same type covering the same time period can be activated on a case.
If configured to prevent 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.
If the deduction type is already being used against payments issued on a case, changing this value will not affect existing deductions on the case. The change will only come into effect when future deductions are created on the case.