To maintain the period lock for the corresponding Controlling component, go to the menu in Cost Element Accounting, Cost Center Accounting, Cost Object Accounting, internal orders, or Activity-Based Costing and choose Environment ® Period lock ® Change.

You can use Actual and Plan to decide whether to lock periods in actual or plan data.

You receive a list of all business transactions in actual or in planning data, with which you can lock individual transactions for specific periods.

Choose Lock transaction or Unlock transaction for individual transactions in all periods of the fiscal year.

You can use Lock periods or Unlock periods to lock or unlock all business transactions for individual periods.