Yes, sap is basically use to optimize business and it's life cycle. For Manufacturing industry sap mm, sap pp, sap fi modules are mostly use.
SAP MM for materiel management, SAP PP for production and planning and SAP FI for managing accounts.
Each sap module have different transaction code (t - codes) and you have to implement it logically.
When you are using sap it means you can track you production, supply chain life cycle and finance etc. and it helps to increase business and relationship with customer.