OKP1 – Period Lock


Use this procedure to open or close the month on the Controlling module/ledger. This will allow or block postings to the CO ledger, including through posting from FI module. Period locks will be managed on the Controlling Period by the Financial Reporting office, based on when the Fiscal Month has been closed for financial reporting purposes.

There are separate CO period locks & Transaction locks for “Actual postings” and “Plan postings”. 


Perform this procedure, together with the FI module close, to indicate the end of the fiscal month, according to the Month-end Closing schedule.


Before closing a period, the user should make sure that all postings to the CO ledgers (including those originating from revenue & expense accounts into FI ledger) for the current month are completed by the Financial Reporting office and the User Departments. For this purpose, it is necessary to follow the month-end closing schedule, which would outline the sequence of the steps.

Menu Path

SAP menu ⇒ Accounting ⇒ Controlling ⇒ Cost Center ⇒Accounting  Environment ⇒ Period Lock  ⇒ OKP1 – Change

T Code: OKP1




Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s