What is SAP ECC
ECC-> SAP ERP Central Component
Uses NetWeaver
Provides Integrated modules such as Finance & Human Resource
What is SAP R/3
->SAP R/3 launched in July 1992.
->Uses Client/server system, whereas previous SAP versions were classed as mainframe systems.
What is HANA
-> SAP HANA is the database type that runs the most up-to-date versions of SAP’s software–specifically SAP S/4 HANA
-> Prior to HANA, all SAP software was run on third-party databases such as Oracle
-> HANA is SAP’s own in-memory platform.
-> Can handle Transactions & Analytics in One system
-> Can run either On=Premise or or Cloud
-> Support for Previous versions of SAP will end in 2027
Differences between S4/HANA vs ECC
- Database: ECC supports databases from other providers such as Db2, Oracle, or Informix, however, S/4HANA only runs on SAP HANA. As a result, S/4HANA has much faster reaction times thanks to its in-memory database.
- A merger of controlling (CO) and finance (FI): When it comes to the merger of controlling (CO) and finance (FI), SAP S4 HANA’s structure of the universal journal stores both the GL account and the cost element, vs ECC where the FI GL accounts are mapped to CO primary cost elements.
- New general ledger: S/4HANA also only uses the new general ledger (GI), while ECC ran both “new” and “classic” versions.
- Customer vs. Vendor to business partner: In ECC, customer and vendor files were separate, while S/4HANA combines the common data structure elements of both into a Business Partner record.
- Rebates: S/4 HANA has replaced the SD rebate processing in ECC with settlement management through condition contracts.
What is ERP
Enterprise resource planning (ERP) is a software system that helps organizations manage and automate their core business processes:
Enterprise resource planning (ERP) refers to a type of software that organizations use to manage day-to-day business activities such as accounting, procurement, project management, risk management and compliance, and supply chain operations. A complete ERP suite also includes enterprise performance management, software that helps plan, budget, predict, and report on an organization’s financial results.
3 Tier architecture in SAP
Presentation layer
The user interface and communication layer, where the end user interacts with the application.
Application layer
Also known as the logic tier or middle tier, this is where information collected in the presentation tier is processed.
Data tier
Also known as the database tier, data access tier, or back-end, this is where information processed by the application is stored and managed.
Handling Unit
A Handling Unit (HU) in SAP represents a physical unit used for handling and storage purposes. It combines materials and packaging materials into a single unit that can be tracked and managed throughout the logistics and supply chain process. Handling Units is essential for efficient warehouse management, shipment, and inventory control.
Condition type controls
Control Data
Condition Class : Defines the nature of the condition cype.
Calculation Type: Determines how the
condition value is calculated (e.g., percentage, quantity).
condition Categorv: Sub-classification within condition class
Rounding Rule: Sets rounding for condition values
