As a company, SAP provides Simple Finance and Simple Logistics to help companies streamline their daily business processes. SAP Accounting pertains to the SAP Simple Finance domain. Technically, SAP Accounting is a part of the SAP FICO module (FI stands for Financial Accounting and CO stands for Controlling).
To gain more insights on SAP Accounting refer to this blog on SAP FICO.
To get trained, traverse through our SAP FICO training page.