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Status

  Approved

Owner

MUTHUSAMY-ext, Kunalan 

Stakeholders


Introduction

Purpose

The purpose of the document is to outline the application architecture of S/4HANA instance deployed in Europe region. 

Scope & Objectives

This document describes the high-level architecture design for S/4HANA and the supporting systems that are deployed together in the RISE environment. It will cover the following topics:

  • Landscape overview
  • Application and components
  • Application security and access
  • Operational architecture

Out of scope:

  • Detailed architecture designs that are managed by SAP RISE.
  • RISE operating model.

Key Decisions and Requirement

DescriptionRationale
SAP Private Cloud deployment model was selected for S/4HANA deploymentPlease refer to KDD026 - SAP S/4HANA Deployment Model.
SAP GTS will be co-deployed with S/4HANA as a separate client.Please refer to KDD074 - Architecture of SAP GTS
Embedded Fiori deployment model - SAP Fiori front-end server is deployed on S/4HANA

S/4HANA will be the only backend system for Fiori and there is a strict dependency between Fiori and S/4HANA version. Hence an embedded deployment will be preferred and it also optimizes hosting and maintenance costs.

Embedded deployment option is also recommended for S/4HANA by SAP. 

SSL and SNC will be configured for S/4HANA to encrypt web and RFC traffic

Synesqo cybersecurity requires all data in transit to be encrypted.

Configure SSO for S/4HANA

As part of SyWay project, a common authentication mechanism (e.g., SAML) will be adopted for ease of access and unified user experience.

99.9% SLA

Based on Syensqo existing non-functional requirements.

Application Architecture

Overview

SAP RISE application architecture is represented in the diagram below. 

SAP RISE Details

The table below summaries SAP RISE details. 

Customer SID

YSQ

Customer Number

3008440

Installation Number

21360356

S-User for PCE

S0026961840

Cloud Provider

Azure

Cloud Region

North Europe (Ireland - Dublin)

Planned Downtime

First Tuesday each month, 15:00 - 19:00 UTC

Application Architecture Components

S/4HANA

​SAP S/4HANA is an enterprise resource planning solution based on SAP HANA database and ABAP platform. It is a core component in the SyWay landscape and SAP Fiori and GTS components will be co-deployed.

The table below lists down the different components within a S/4HANA instance. 

ComponentDescription
SAP Central Services (SCS)

SCS system comprises of message server and enqueue server :

  • Message Server: Facilitates communication between different application servers within the SAP system. It manages load balancing and distributes user requests across available servers.
  • Enqueue Server: Manages lock mechanisms to ensure data consistency and integrity. It handles lock requests from application servers to prevent data conflicts.
Primary Application Server

Component that runs various work processes (dialog, background, update etc.) and services.

Additional Application Server

Performs the same function as the primary application server. It is an optional component that is typically deployed in instances to handle higher workloads or for high availability purposes.

HANA DB





Application Security

Classification

Authentication

Authorisation

Communication Security

Data Security

Other Controls


System Landscape

The following table describes the environment and the corresponding application & SID deployed. 

Region

Landscape

Systems

S/4HANA (HANA DB)

Web Dispatcher

SAP Cloud connector

SAP Data Provisioning Agent

SAC Agent

OpenText Connector

Europe

Sandbox

ERS (HRS)

WRS

N/A

N/A

N/A

N/A

Development

ERD (HRD)

WRD

CRD1

DRD1

SRD1

ORD1

Integration Testing

ERT (HRT)

WRT

N/A

N/A

N/A

N/A

Training

ER2 (HR2)

WR2

N/A

N/A

N/A

N/A

UAT

ERQ (HRQ)

WRQ

N/A

N/A

N/A

N/A

Parallel Testing

ER1 (HR1)

WR1

N/A

N/A

N/A

N/A

Production

ERP (HRP)

WRP & WRH

CRP

DRP

SRP

ORP

Development Environment

Project Test Environment

Quality Environment

Production Environment


Operation Architecture

Change and Configuration Management

Transport Management

Release Management

Monitoring

Application Monitoring

System Monitoring

Sizing

High Availability

Disaster Recovery

Backup/Restore

Maintenance Plan


Service Introduction

Application Category

Support Team

Skill required

Checklist


Exceptions


See also


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Change log

Version Published Changed By Comment
CURRENT (v. 9) Mar 10, 2026 08:28 MUTHUSAMY-ext, Kunalan
v. 71 Feb 04, 2026 07:54 MUTHUSAMY-ext, Kunalan
v. 70 Feb 04, 2026 07:53 MUTHUSAMY-ext, Kunalan
v. 69 Jan 15, 2026 14:15 MUTHUSAMY-ext, Kunalan
v. 68 Jan 14, 2026 03:41 MUTHUSAMY-ext, Kunalan
v. 67 Dec 03, 2025 10:46 MUTHUSAMY-ext, Kunalan
v. 66 Dec 03, 2025 10:45 MUTHUSAMY-ext, Kunalan
v. 65 Nov 06, 2025 08:31 MUTHUSAMY-ext, Kunalan
v. 64 Nov 05, 2025 15:59 MUTHUSAMY-ext, Kunalan
v. 63 Nov 05, 2025 12:31 MUTHUSAMY-ext, Kunalan

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