If you cannot enter your count results in full on the day on which you block your warehouse for goods movements, you can freeze the book inventory balance for your physical inventory documents. This allows you to save the book inventory balance in the physical inventory document for the documents for which you have not entered a count. This prevents incorrect differences due to goods movements posted after the physical inventory has been performed. You can freeze the book inventory balance when creating the physical inventory document, when entering the count results, or after entering the count results for items that have not been counted. You can freeze the book inventory balance in an individual function or using session processing.