Testing manufacturing period-end

For a manufacturer like Contoso, the largest period-end postings outside the general ledger come from production orders. Production order 1001200 builds 500 CMC-ALT-100 alternators in plant 1710. During the month it collects the components issued, the labor and machine time confirmed, and the credit for the goods received into stock. At period end, controlling turns those costs into overhead, work in process (WIP) or variances and settles them to the balance sheet and the P&L. Errors here move margin, inventory and cost of goods sold, often without any error message.

The order close sequence

With period-end costing, each order runs through the same steps in a fixed order: overhead calculation (collective CO43), WIP calculation (KKAO) for orders still in process, variance calculation (KKS1) for orders that are finally delivered or technically completed, and settlement (CO88, or KO88 for a single order). The order status decides which result an order gets: while it is open, its balance is WIP; once it has status DLV or TECO, the WIP is cancelled and the remaining balance is a variance. Check the Fiori job templates in your app library for the same steps.

A worked example: production order 1001200

Write the expected values before the mock close, from the standard cost estimate and the test inputs. CMC-ALT-100 has a Detroit standard of 150.00, so the target cost for 500 pieces is 75,000.00. The test plants two deviations: three extra rotors issued (scrap at the line) and ten extra hours of assembly labor at work center ASSY-10.

The goods receipt of 500 pieces credits the order with 500 × 150.00 = 75,000.00, so after the order is delivered its balance is the 776.80 variance. Settlement must post exactly that amount to the production variance accounts, update the material ledger and, if Contoso uses margin analysis for variances, show it by cost component, and leave the order balance at zero. A result of 776.79 or 776.81 is a defect to explain, not a rounding detail.

Test cases that cover the logic

• Delivered, no deviation. An order confirmed and received exactly to plan: expected variance 0.00. It proves the target cost and the overhead rates.
• Delivered with deviations. Order 1001200 above: expected variance 776.80, split by cost component.
• Open across period end. An order half confirmed at cutoff: WIP posts to the balance sheet, then reverses in the next period when the order is delivered.
• Technically completed with a shortfall. An order stopped after 480 pieces: the costs of the missing 20 become variance, not WIP.
• Converted open orders. Orders open in EP1 at conversion carry their costs into SAP S/4HANA. Include some in Mock 2, together with materials whose production versions the conversion generated.