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openSAP s4h35 Week 1 Unit 01 INTRO Presentation

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Week 1: Staging Tables Approach and Migration Object Modeler
Unit 1: Introduction to Data Migration
Introduction to data migration
Weekly learning objectives
Week 1: Staging Tables Approach and Migration Object Modeler
By the end of this week, learners will be able to
▪ Explain data migration requirements and tools to support you in your project
▪ Comprehend the migration process in the SAP S/4HANA migration cockpit,
including executing a staging table project
▪ Understand special topics that are valid for SAP S/4HANA and
SAP S/4HANA Cloud, private edition
▪ Work with the migration object modeler in a staging table project
Check out the openSAP course “Migrating Data to SAP S/4HANA Cloud, Public Edition”.
This course focuses on SAP S/4HANA Cloud, public edition and deep dives into migrating data using
staging tables.
Week 2: Direct Transfer Approach
Week 3: Migration Object Modeler for Direct Transfer
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2
Introduction to data migration
Agenda
Data migration requirements in a “new
implementation” transition scenario
Supporting tools: SAP Activate methodology,
SAP Signavio Process Navigator, Data Migration
landing page
Overview of SAP S/4HANA migration cockpit
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3
Introduction to data migration
Transition paths recap
Approach
REUSE
with in-place conversion
Business Driver
Start rapid
modernization
Transition Option
System
conversion
Target
SAP S/4HANA Cloud,
private edition
SAP S/4HANA
versus
REENGINEERING
with data migration
Customer tailored
Highly standardized, with
best practices and based on
a clean core
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Selective business
process optimization
Business model
innovation
Selective data
transition
New
implementation
SAP S/4HANA Cloud,
private edition
SAP S/4HANA
SAP S/4HANA Cloud,
public edition
SAP S/4HANA Cloud,
private edition
SAP S/4HANA
4
Introduction to data migration
Focus: new implementation
Approach
REUSE
with in-place conversion
Business Driver
Start rapid
modernization
Transition Option
System
conversion
Target
SAP S/4HANA Cloud,
private edition
SAP S/4HANA
versus
REENGINEERING
with data migration
Customer tailored
Highly standardized,
with best practices and
based on a clean core
Selective business
process optimization
Business model
innovation
Selective data
transition
New
implementation
SAP S/4HANA Cloud,
private edition
SAP S/4HANA
SAP S/4HANA Cloud,
public edition
SAP S/4HANA Cloud,
private edition
SAP S/4HANA
Mapping Your Journey to SAP S/4HANA – A Practical Guide for Senior IT Leadership
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5
Introduction to data migration
Data migration requirements
What are the sources / sender systems of the data?
Number and type of source systems? Central master data management?
Which data is needed from your source to operate SAP S/4HANA the way you want?
Master data? Open items? Balances?
Migrate data “as is” or transform on the fly?
Data transformations needed? Data quality improvement necessary?
Who needs to be involved?
Decisions to be taken? Major stakeholder?
Bottom Line: Start as early as possible to ensure high quality data
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6
Introduction to data migration
Sources to support you in your migration process
SAP Activate Methodology
(Roadmap Viewer)
▪ Access implementation guidance for
your digital transformation
▪ View and download SAP Activate
methodology assets and accelerators
▪ https://go.support.sap.com/roadmap
viewer/#
© 2023 SAP SE or an SAP affiliate company. All rights reserved. ǀ PUBLIC
SAP Best Practices
via SAP Signavio Process
Navigator
▪ Access and download SAP Best
Practices content
▪ Power your project with ready-to-run
business processes
Data Migration Landing Page
on SAP Help
▪ Access documentation – Application
Help
▪ View additional slide decks and training
information
▪ http://help.sap.com/S4_OP_DM
▪ https://me.sap.com/processnavigator
7
Introduction to data migration
Facilitate migration projects with SAP S/4HANA migration cockpit
Out-of-the-box, included in
SAP S/4HANA and SAP S/4HANA
Cloud license and shipment
Preconfigured SAP S/4HANAspecific migration content
Guidance and simulation
for the migration process
SAP S/4HANA
Migration Cockpit
Integrated into SAP
Activate methodology
Automated mapping
between source and target
Lower migration time and costs
No developer skills required
Migration object modeler for
custom requirements
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8
Introduction to data migration
Data migration process with SAP S/4HANA migration cockpit
SAP S/4HANA Cloud,
public edition
SAP S/4HANA Cloud,
private edition
Select
migration objects
Get data
SAP Business
Suite
Map and transform data
Model and design to reflect custom
requirements
Simulate
Migrate
SAP S/4HANA
Legacy
Migration programs are automatically generated – no programming required
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9
Introduction to data migration
Migration approaches
Two different migration approaches, depending on the source system:
Migrate Data Using Staging Tables
Migrate Data Directly from SAP System
(Direct Transfer)
▪ Staging tables are created automatically in the
SAP HANA DB (either locally or in a remote system)
▪ Connect source system (ABAP-based SAP source systems)
via RFC connection
▪ Populate these staging tables with business data
using:
– XML template files
– CSV template files
– SAP or third-party ETL tools
▪ Selection
– Based on predefined selection criteria (for example,
company code for ERP source system) and selected
migration objects
– Can be adapted with the SAP S/4HANA migration object
modeler
▪ Supports data migration scenarios from
SAP ERP, SAP AFS, SAP APO SPP, SAP CRM, SAP EWM
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10
Introduction to data migration
Migration objects
Preconfigured SAP S/4HANA-specific migration content
What is a migration object?
▪ Represents a business entity in SAP S/4HANA, such as a customer, sales order, or invoice
▪ Encapsulates the logic to create the specific business entities through the corresponding APIs offered
by SAP S/4HANA
▪ Delivered by SAP based on SAP Best Practices configuration and ready for immediate use
▪ Categorized in master data and transactional data (no historical data)
▪ Contains rules for how values from source to target are handled – called “mapping”
What is migration content?
▪ Migration content is the sum of all migration objects
What about updates on migration objects delivered by SAP?
▪ Updates are shipped by SAP (e.g. a standard field was added) with a new release or via TCI notes
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11
Introduction to data migration
What it is designed for (in/out of scope)
Designed for:
▪ Initial load of data (master data, open transactional data, no historical data)
▪ Used in the context of a new implementation of SAP S/4HANA, SAP S/4HANA Cloud,
private edition, and SAP S/4HANA Cloud, public edition
▪ Transport projects from DEV-Q-PROD via CTS
▪ Direct Transfer: Source system can also be a non-Unicode system
Not designed for:
▪ Keeping data in sync across systems*
▪ Realizing a continuous exchange or flow of data*
▪ Establishing an integration scenario*
▪ Cleansing data
▪ Migrating data directly from SAP S/4HANA or SAP S/4HANA Cloud to SAP S/4HANA is
currently not supported.
* For this purpose, SAP products like SAP Master Data Governance, Central Finance, product data replication, SAP
Landscape Transformation Replication Server, or SAP Data Intelligence are available (list does not claim to be complete)
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12
Introduction to data migration
SAP S/4HANA migration cockpit does not migrate historical data
Do you remember the last time you moved house?
▪ SAP S/4HANA migration cockpit is designed for a new
implementation.
▪ No migration objects for historical data in migration
cockpit*:
▪ Only the data necessary for a smooth business start is
migrated.
▪ A comprehensive customer-specific evaluation makes sense.
Solutions like Business Warehouse or side-by-side
extensibility can be considered.
Examples:
▪ The migration of closed documents leads to postings which are already included in the balances; there are no longer
open items for those documents.
▪ For partially open items, only the remaining quantities or values should be migrated.
* Exception: FI – Historical balance migration object see SAP Note 2943035
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13
Introduction to data migration
Migration strategy – General considerations
It is important to determine how data is transferred from the legacy system to the new system as
early as possible.
There are many influencing factors that could drive the appropriate approach for a specific system.
Some factors to consider include, but are not limited to:
▪ Amount of business data to be transferred and converted
▪ Permitted business downtime
▪ Data changes in scope during migration
▪ Type of data in scope for migration
▪ Business data quality of the source system
▪ Check Customizing
Relevant Customizing in the target must be available (for example, organizational units, define document
type for migration, define accounts for migration, remove account blocks)
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14
Introduction to data migration
Key takeaways
In this unit you have learned
▪ Why data migration in a new implementation scenario is important
▪ About SAP S/4HANA migration cockpit as the tool of choice
DATA MIGRATION IS NECESSARY
It is one key task during the transition to SAP S/4HANA.
Unfortunately, it is often underestimated. It can’t be
done by just pressing a button.
Make sure to understand your data migration
requirements early and plan for them accordingly.
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15
Thank you.
Contact information:
open@sap.com
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