Periodic Costing Overview > Concepts > Zero or Negative Unit Cost Reset to Latest Period Cost
  
Zero or Negative Unit Cost Reset to Latest Period Cost
For some items and sites, occasionally, there is no Periodic Costing unit cost for the period or the Periodic Costing unit cost is negative. In these situations, the system now resets the current period unit cost to the cost at the latest period that has unit cost so that the inventory quantity can be costed properly. Previously, when there were issue or receipt transactions, which increased or decreased inventory in the current period, the system set the cost of the inventory quantity as 0 or a negative unit cost.
Note the following regarding orders or DRP receipt quantities when the system is resetting values:
The system does not set the cost for the current period and does not create the PCCSTCOR transaction when:
The period has no orders.
The period has no DRP receipt quantity or cost.
The period has no issues/receipts at average transaction.
The system does not reset the unit cost for the current period and does not create the transaction when:
The period has orders.
The period has DRP receipt quantity.
The unit cost is 0 or negative.
There is no issue/receipt at average transaction.
The system does not set the cost for the current period but does create the transaction to post cost amounts to discrepancy and log exceptions when:
The period has orders.
The DRP receipt quantity is 0.
The cost amount is not 0.
There is no issue/receipt at average transaction.
The system resets the unit cost for the current period to the latest period with cost and logs the exception when:
The period has orders.
The period has DRP receipt quantity.
The unit cost is 0 or negative.
There is issue or receipt at average transaction.