Transition phases always bring about challenges and open room for errors. This is true in the case where the posting period has ended but the period is not closed yet. You want to keep it open so the last purchasing documents can be recorded, and on the other hand, you need to notify everyone to make sure they don’t create any sales documents in the previous period by mistake. To increase transparency and prevent human errors, SAP Business One enables you to set the status of a posting period that just ended to “Unlocked Except Sales”:
This way, users with the authorization “Period Status: Unlocked Except Sales” can record purchasing transactions in the previous period, while recording sales activities to the ‘closed’ period is blocked. Once all the late transactions have been recorded, you may set the status of the posting period to “Closing Period”. In this stage, only users with the authorization “Period Status: Closing Period” may record transactions to the posting period.
Available in SAP Business One 9.3, version for SAP HANA and SAP Business One 9.3.
Source: Ari Schapira | SAP Business One – The Tip of the Week