1. About Viessmann
2. Initial Situation
3. Project procedure / milestones
4. s.m.a.r.t. S/4 Data Migration
5. Key success factors
6. Benefits
7. Q & A
Agenda
Employees worldwide
Western Europe
(thereof Germany)
China
Russia & Kazakhstan
North America
12,000 Viessmann family members
11,400
6,900
260
200
130
Leadership organization:
one team, two business areas, one purpose
Executive
Council
Executive
Board
Maximilian Viessmann
Group Co-CEO
Climate Solutions
Prof. Dr. Martin
Viessmann
Chairman
Dr. Ulrich Hüllmann
CFO & SSCs
Joachim Janssen
Group Co-CEO
Industrial & Refrigeration
Solutions
Dr. Tino Weber
CEO Industrial
Solutions
Frank Winters
CEO Refrigeration
Solutions
Dr. Klaus-Peter Kegel
CEO Heating
Solutions
Dr. Markus Pfuhl
CDO Digital
Transformation
Dr. Florian Resatsch
CEO VC/O
Using the right energy sources
Covering all use cases
AirSolar Geothermal Biomass GasOilElectricity
Air QualityCoolingHeatingElectricity
GenerationEnergy Storage
Renewable Conventional
Climate
Solutions
Products & Systems
Value Added Services
Products & Systems
Digital Services
Connectivity & Platforms
...
...
...
...
The Integrated Viessmann Solution Offering
Climate
Solutions
185
70 Million
83
9.600
180.000
2
Employees Gender: Male 90%, female 10%
Allendorf Age: 20-30: 24%, 30-40: 30%, 40-50: 16%, 50-60: 23%, 60-70: 6%
Shares Base: mil 47, IoT & Data: mil 14, Projects: mil 9
Supported Legal Viessmann entities, 64% foreign companies
Companies Biggest: Viessmann Deutschland, Smallest: Viessmann Lettland
Int. User Sales: 40%, Production: 38%, Administration: 17%, R&D: 5%
Ext. User End customer: 85%, Heating installer: 15%
Data 850 virtual servers: Windows: 60%: Linux: 15%, AIX: 25%
centres
Cloud Growing trend: MS Azure, Salesforce, GSuite, checking phone routing
appliances MS Azure: 370 virtual servers, 530 platform services
82Employees Gender: Male 95%, female 5%
Wroclaw Age: 20-30: 27%, 30-40: 73%
Our organization is pretty young and we are aligned internationally. We do have a high IT user
penetration and already a significant but continuously increasing usage of cloud resources.
IT Service GmbH
About Viessmann
IT Service GmbH
About Viessmann
Corporate Network
Processing & Storage
Application Landscape
Solution DevelopmentCustomer driven end-to-end projects
vertical: whole technology stack
horizontal: whole supply chain
Wired Wireless
Hybrid: Cloud and on Premise
Collaboration ERP, CRM, PLM IOTData
Supported companies
Initial Situation
• Company codes : 190
- Sales companies : 78
- Production companies: 28
- Other companies : 84
• Countries : 34
• Users : 6.000
ERP is the central component of our
international business system landscape
Application Landscape
Initial Situation
3rd
Party
DWH
PLM Portal
PTV
NEO
MobileCAD
EWM
SAP
PX
• One global ERP with one Client for the whole
group
• 38 AddOns and name spaces
• System on Unicode
• 34 different languages
• Database : 5 TB
• 5 x SAP Application-Server /
2 x HANA-DB (Cluster)
Sales
force
Reasons for S/4 HANA
Initial Situation
Use S/4 HANA capabilities to enable Viessmann requirements and improvementsBusiness
Standardize prcesses by using best practice approaches based on SAP S/4 HANA greenfield Processes
Harmonization of business- and end to end –processes in guidance with the GPO-projectGovernance
Functional methods to migrate the complete dataset including the historyTransition
S/4 HANA Migration as biggest single investment in Viessmann IT history so far
Timeline and Effort
S/4 HANA
as future
digital
platform
Using state of the art technology to improve user experience, system performance and reducing complexity within the IT infrastructure
System
Why Greenfield ?
Initial Situation
Necessary processes will be checked with the Business
• Standard / best of breed approach
• other process will be take over from current system or will be new designed
• Migration of all necessary current data
Brownfield
Greenfield
Full Transition of existent data and processes.
This includes a lot of old and individually development and processes!
Decision
Steps to S/4 HANA
Project procedure / milestones
1.
Ste
p HANA DB Migration
Business Partner Implementation
New General Ledger
2019
Confirmation of
new S/4 HANA
system:
22.04.19
20182017
Pre
S/4 HANA Process Blueprint Analysis
2.
Ste
p
S/4 Transistion
- Detailed Process
analysis and adoption
- 3 Integration Test
- User Acceptance Test
22.4.IT3IT3IT3
Particular feature: At Viessmann we have one ERP-system
-> GoLive only as big bang possible
Pre-study
Project procedure / milestones
• Increase usage of mobile user interfaces
• Benefit from FIORI user interface to increase user experience and simplify processes
• Analyze usage of embedded analytics for functional areas
• Decrease training costs for non-experienced users
• Identify optimization potentials and decrease Viessmann specific process variants by reverting to SAP Standard processes
• Achieve business benefits with S/4 HANA innovations
• Identify must activities / changes in preparation for S/4 HANA transition
• Reduction and simplification of the current Application landscape
• Replace out-of-date and redundant applications by SAP standard features
• Analyze current SAP solution with regards to S/4 HANA transition activities
S/4
HA
NA
Str
ateg
ic B
luep
rin
t
Use
rEx
per
ien
ceP
roce
sses
Ap
plic
atio
n
Workshops by SAP Module – Overview
Project procedure / milestones
Workshops conducted
Process activities identified
SD 5 9
PP 5 14
MM 4 8
FI/CO 3 20
CS 2
PLM 2 2
GTS 1 6
PS 1 1
PM 1 7
QM 1
WM 1
SUM 26 68
Timeline and Milestones
Project procedure / milestones
Further Optimization Requirements
Selective Code Migration
Data Migration (ECC → S/4)
S/4 HANA 1709 (new application)
Template Readiness
S/4 HANA Impacts Resolution (MUST)
New Processes / Optimizations
Innovation Cycle
MTO MOMSalesforceService Mgmt. GermanyCompany Code harmonis.Vendor harmonis.COPA / PCA
2019
Design/Build UAT
Feb Mar AprOct Jun Jul Aug Sep Oct NovMay Jan Feb Mar Apr JunMayNov DecSep Dec Jan
2017 2018
optional: S/4 HANA 1808 upgrade check
IT2
IT1
GoLive Cutover
Par
alle
l Pro
ject
s
IT3
S/4 HANA – Data Migration Approach
s.m.a.r.t. S/4 Data Migration
Data mapping based on central defined logic,
e.g.• Accounts• Material types• Number ranges• …Enrichment / Cleansing
of data
Import of data into target system by
• SAP standard functions (IDOC, BAPI, Batch Input, …)
• cbs direct database update
Definition of import method on object level
Data extraction Mapping & Cleansing S/4 transformation Post | Update
Source System Target System
Flexible extraction of data based on given
selection criteria, e.g.• Company codes• Fiscal Years• Open or closed
processes• Deletion Flags• …
Transformation into S/4HANA® structures
invokingstandard SAP logic
• For each integration test using cbs migration tool
(table-oriented)
s.m.a.r.t.
MADE TO
MEASURE
THE s.m.a.r.t. MADE-TO-MEASURE PROCEDURE
Legacy ERP
New S/4System
(Selective code & customizing migration)
1 Install empty S/4 systemEmpty
SAP S/4HANA
Clean up & enhancecoding and customizing2
Harmonize and migrate data to S/4HANA®3
S/4 HANA – Data Migration Approach
s.m.a.r.t. S/4 Data Migration
cbs standard software, 100% SAP-based
Combination of Database & transactional updateallows new project types and solutions
for customer specific problems
Audited by Ernst & Young
High-speed transformation into target structureswithout business downtime
1995
2000
20052008
cbs System MigrationWorkbench
cbs Standardization, Harmonizationand Consolidation Framework
cbs ET EnterpriseTransformer®Use of SAP R/2-R/3
Migration Tools
cbs Data MigrationFramework
cbs ET® 4S/4 HANA
20152012
Unique end-to-end solution for all transformation tasks
Pre-delivered cbs ET® Business Objects
Scalable, customizable, re-useable
Customer specific solutions instead ofpre-defined scenarios
Extensive analysis- and evaluation-features
Extensive, comfortable and complete protocols
Full audit trail for all settings (fully integrated intoSAP transport management)
Full audit trail for all transformation activities –embedded logging in cbs ET®
Build in holistic validation features
20 years. 1.000 projects. One single software. Proven. Audited. Integrated.
cbs ET Enterprise Transformer® - Summary
S/4 HANA – Data Migration Approach
s.m.a.r.t. S/4 Data Migration
• Quantity structure :
ca. 25 bn. records
ca. 10 bn. in advance
ca. 15 bn. GoLive
incl. history
• Number of business objects / tables :
6.104 Business objects
37.276 tables
• Migrated modules :
FI, AM, CO, MM, WM, PP,SD, HR,
CS, PS, QM, PM,
• Performance (Import) :
up to 45 Mio records/minute
• Resource requirements GoLive :
Cores : 126 IBM Power-cores
RAM : 5,1 TB RAM
Batch-Jobs : ~260 parallel jobs (Import)
• Highlights / drivers for complexity :
ACDOCA / Assets
Material-Ledger before, afterwards
Special currency constellations
User Acceptance test
s.m.a.r.t. S/4 Data Migration
Test Cases
created: 12.000
Bugs created: 208 (was 173)
open: 42 (was 96)
Status
“done”
with bug:
229 (was 731)
critical: 0 (was 14)
high: 17 (was 41)
Status
“done”
• Of 10.292 functional test tickets, 229 (2,2%) have the status bug
• At the end of Functional User Acceptance Test, no bug has a “critical” priority any more
• In the current simulation of Data Validation in Asset Mgmt, 1 bug was found in 2019, solution is under way
CutOver Go Live Easter Weekend
s.m.a.r.t. S/4 Data Migration
Preparation & Back-
Up
ITS SAP
Datamigration
cbs
(66 h)
Rework
ITS SAP
(+ CKU)
ITS BasisRework
cbs
SAP
Queries /
Reportvar.
ITS SAP
Night
Puffer
Data
Validation
600 User
(4-6 h)
Smoke
Test
ITS SAP
Inter-
face
activ.
SAP
Soft Opening & Bug
Fixing
ITS SAP
Do
18.4.
12:00
Do
18.4.
18:00
So
21.4.
12:00
So
21.4.
15:30
Mo
22.4.
22:00
Mo
22.4.
08:00
Mo
22.4.
14:00
Mo
22.4.
18:30
Di
23.4.
08:00
Technical
Validation
ITS
MondayNightSaturdayNightFridayNightDay
Bug Fixing
CBS
Night
GoLive Tuesday 23. April, 08:00
Mo
22.4.
16:30
Bug Fixing
CBS
Posting
Allowance
Point of No Return /
Activation of Interfaces
SundayNight
Standardized processes - support by business departments
Key success factors
Requirement for business contact person
▪ Very good process knowledge and its usage in the SAP-System
▪ Independent execution of training and documentation
▪ Consider your current process issues - The resolution of pain points are triggered by business need
▪ The business contact person is needed in workshops (several days per week; not continuously one week after
another)
▪ Business department is highly needed for the project. - Name contact person
Viessmann Business DepartmentViessmann IT Service
GPO
Close
interaction
Communication: S/4 HANA Site
Key success factors
S/4 HANA Site now includes information
for the end user:
▪ Training Overview
▪ Functional FAQ’s
▪ Transaction Finder
▪ Key User Finder
▪ List of Fiori Apps
▪ Link to Vi2Go Articles
Plus information for the Cut-Over Team:
▪ Migration Progress
▪ Cut-Over FAQ’s
▪ Cut-Over Plan of ITS
Project success factors
Key success factors
● Cross-functional cooperation of GPO, Central Key Users and IT Service and cbs
● High focus on complete business processes
● Intensive preparation and testing of end-to-end processes
● Alignment of the entire team and overall target synchronization
● Governance by TOP Management
● Integrated PMO approach with intensive time and risk management
Viessmann Business DepartmentViessmann IT Service
Close interaction GPO
Overview Soft Benefits
Benefits
Greenfield driven
• Improved logistics service level („LSG“) based on better
material requirements planning and better alignment of
promotions with SCM
• Increase of contribution margin with new pricing and
conditions system, increase of online ordering with newonline specific- and promotion rebates
Technical driven
• Easier handling of online payment with possibility of credit card payments (S4)
• Increase of average order amount using guided selling (Configit, SAP)
• Better fulfillment of legal requirements in customs clearance (SAP GTS)
• Better informed sales agents due to 360° customer view
(S4, Fiori, Salesforce)
Sales Technical Service (‘TD’)
Greenfield driven
• Increase of direct delivery of spare parts to service
engineer from WVZ by service provider LPR for other
countries
• Higher availability of critical spare parts by internalprioritization in case of bottlenecks
Technical driven
• Better mobile service data collection (Fiori)
• Possibility for credit card payments (S4, Fiori)
• Higher efficiency in service process, e.g. faktura (SAP CS, Neo)
• Better spare parts requirements planning of cars (S4)
• Higher degree of seamless customer experience by
better integration of IT systems (SAP CS, Fiori, Salesforce,Neo, VitoGuide)
• Better integration with sales due to 360° customer view
(S4, Fiori, Salesforce)
Soft benefits have not been quantified, but will strongly support customer satisfaction
Clarification and Tidying up
Benefits
ERP S/4 HANA * Change
Z-Programs ~ 24.000 11.106 -53%
Z-Transactions ~ 4.500 3.512 -22%
• Viessmann-specific programs and transactions have
been reviewed and reduced
• New Viessmann-specific programs and transactions
have been introduced (German pricing PKS)
• Next Steps: in new S/4 HANA System,
(a) reduce archiving time periods and
(b) continue with benefit driven process improvements
* includes new German Pricing PKS Z-Programs and Z-Transactions, as of April 5th 2019
Highligths with S/4
Benefits
● Faster system with higher performance
○ For example MRP calculation time :
● Process enablement through new tools:
SAP Integrated Business Planning (IBP) 50 min
6 h
MRP Calculation Time
● Mobile solution powered by
SAP FIORI Apps
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