The document discusses shelf life expiration time (SLET) functionality in SAP ERP and S/4 HANA. Standard SAP functionality does not allow for managing shelf life at a time unit lower than a day. The document outlines industry requirements for managing shelf life expiration time at an hourly level. It then summarizes IT Sapiens' solution which provides the ability to manage shelf life expiration time with timestamps down to the second in SAP ERP and S/4 HANA through additional fields, batch characteristics, and functionality in transactions like goods receipt and issue.