Technical Walkthrough of SAP S/4HANA System Conversion

Webinar
Technical Walkthrough of
the SAP S/4HANA System
Conversion

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Business Digitally
Social Mobile Analytics Cloud AI IoT
Vaidehi Srinivasan
SAP S/4HANA Solution Architect – KaarTech
25+ years of SAP Expertise

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Business Digitally
SAP S/4 Conversion
System
Conversion
ERP System1 On Premise
New
Implementation
ERP System
Third Party System
2 On Premise
Landscape
Transformation
ERP System
Region-A
ERP System
Region-B
ERP System
Region-C
3
On Premise

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Business Digitally
Transition to SAP S/4HANA
Project Mgmt
Application:
Solution Adopt
Application:
Design &
Configuration
Analytics
Custom Code
Extensions
Testing
Application:
Integration
System & Data
Migration
Technical
Architecture &
Infrastructure
Transitions to
Operations
Project Initiation Execution / Monitoring / Controlling
Organizational Change Management (OCM)
Learning Realization
Build Execution
Security Implementation
Safeguarding the Digital Transformation
Build Design
Analytics Design Analytics Execution
Build Execution
Custom Code Management
Build Design
Platform Execution
Data Migration Design Data Migration Execution
Platform Design
IT Infrastructure Setup & Test IT Infrastructure Service
Finalization
Transition to Operations
Planning the Digital
Transformation
TransitionPreparation
Integration Design Integration Implementation
Integration Setup
Discover Prepare Explore Realize Deploy Run
Closing
OperateSolution
ImproveInnovateSolution

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Discovery – Prepare – Realize
Discovery /
Assessment
PreConv Prep
Pre Conv Config SUM UPTIME
SUM DownTime
Pre Data Migration
Config
Data Migration
Data Validation

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Discover Phase - Maintenance Planner

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Discover Phase – Readiness for Conversion
 How big should my SAP HANA database be?
 Are my add-ons compatible with SAP S/4HANA?
 What SAP Fiori applications are relevant to my users?
 Which business functions I run are affected by SAP
S/4HANA?
 Which transactions I run are affected by SAP S/4HANA?
 Will my custom code objects work with SAP S/4HANA?

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Discover Phase – Activities
 Technical & IT Infra Workshops
 Functional Workshops
 Strategize with IT and Functional SMEs–
 Landscape & Deployment
 Dual Development
 HA&DR
 Cutover
 Integration with Interfaces
 Testing
 Archiving
 Training

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Discover Phase - Deliverables
S/4 Adoption RoadMap Functional Impact Analysis
• Business Function and Industry Compatibility
Assessment
• Business Process Impact Analysis
• Fit Gap Analysis
• Business Functions and SAP Add-Ons Verification
• Review of Errors and inconsistencies in Pre-Check
• Review of Simplification List
House Keeping Advisory
• Data Archiving
• Table Cleansing
• Code Cleansing
• Housekeeping Advisory on Master Data
Landscape and Infra Consideration
• Sizing
• Deployment recommendation
• Dual Development Strategy
• HA/DR Strategy
Project Considerations
• Project Plan
• Testing Strategy
• Cut- Over Strategy
• Custom Code Impact Analysis
• IT Effort Calculation

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Prepare – Realize
PreConv Prep
Pre Conv Config SUM UPTIME
SUM DownTime
Pre Data Migration
Config
Data Migration
Data Validation

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Business Digitally
The Crux of the Conversion
Maintenance
Planner
Pre-Checks
Custom Code
Preparation
Software Update
Manager(SUM)
Application –
Specific Follow up
Activities
Cross Application & Specific Preparation Activities
New SUM
Prerequisites Check
Simplification Item
Catalogue
Simplification List
Readiness Check
Transformation Navigator
Roadmap Viewer
‘)Incl.
Preparation of
Financial data
‘)Incl. Migration
of Customizing
and Data
System
Requirements
Add-On Deletion New Framework SUM 2.0 (Q3/2017)
Preparation Phase Realization Phase

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Custom Code
Custom Code Check
SAP Business Suit System SAP S/4HANA System
Custom Code
SAP Code Simple SAP Code

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Custom Code
Maintenance
Planner
SI - Checks
Custom Code
Preparation
Software Update
Manager(SUM)
Application –
Specific Follow up
Activities
System
Requirements
Preparation Phase Realization Phase
SAP
S/HANA
Checks
Custom
Code
Evaluation
Functional
Adaption
Performance
Tuning

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Business Digitally
 Start with the System Conversion guide form SAP
 Download of OSS Notes needed for the S/4HANA Preparation.
 Perform cleansing and archiving activities. Archive all you can and cleanse data not relevant like spool and
job logs.
 Review versions of SUM, Maintenance Planner.
 Download DVD for installation
 Run and Review SAP Readiness Check & Maintenance Planner
Pre-Conversion Preparation

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 Target Landscape Hardware & Infra readiness
• Hardware Installation & Provisioning
• Hana OS & DB Checks
• Target Application Server Checks
 Installation of Evaluation Instance
 Uninstalling Add-Ons and adaptation
 Run Pool/Cluster Table Check Jobs - SDBI_CLUSTER_CHECK and
SDBI_POOL_CHECK and SDBI_CHECK_BCD_NUMBERS
 New Simplification Item checks - /SDF/RC_START_CHECK
 DB variant Checks
 RASFIN_MIGR_PRECHECK - FI
 PRECHECK_UPGRADATION_REPORT - GSC
 Functional Pre-Conversion Configuration
 Controlling Area, Asset Accounting, New Depreciation
 BP and CVI
Pre-Conversion Configuration

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SUM - UP Time and Down Time
Discovery / Prepare Phase Realize Phase
Maintenance
Planner
Pre-Checks
Custom Code
Preparation
Software Update
Manager(SUM)
Application –
Specific Follow up
Activities
Simplification List
SAP S/4HANA On-Premise
System
Requirements
Pre-Transformation-Checks
Uptime Processing
Uptime Processing
(Dev Lock)
System update (SHD) & Migration
Shadow System
System update (Application Data)
Data Conversion
Downtime Processing
Data Migration
Table replacement, Kernel Switch
AIM/XPRAS, SPAU
Post Processing Uptime
Data
Conversion(FIN, ML)

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Post-Migration activities
• Complete Migration:
• Final reconciliation after
migration
• Set Migration to
“Completed”.
• Transfer Application
Indexes
• Fill due dates in FI
documents
 Define Settings for Ledgers and Currency Types
 Review the Assignment of Ledger and Company Code to Acc.-
Principles
 Define Ledger for CO Version
 Define Document Types for Postings in Controlling
 Define Document Type Mapping for CO Business Transactions
 Define Offsetting Account Determination Type
 Define Source Ledger for Migration of Balances
 Check and Define Settings of Controlling Area
 Execute Consistency Check of General Ledger Settings
 Validate Business Functions
PreData Migration , Migration and Post Data Migration

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Data Validation
Aggregation
Count the number of entries in each
master and transaction data tables of
ECC and S/4HANA system
Data Quality
Identify the data discrepancies among
ECC & S/4HANA master and transaction
data tables
Tabular Analysis
Compare the master and transaction
data tables in ECC & S/4HANA
Field Comparison
Compute the field differences
across the tables

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General Ledger
 GL Account Balances
 Totals and Balances
 Posting Totals
 The financial statements program
 G/L Accounts List
 The general ledger line items list
 The G/L account balance list
 The compact document journal
Accounts Receivable
 Transaction Figures: A/C Balance
 Customer List
 The customer sales
 The customer open item list
 The customer recurring entry original documents
 Accounts Payable
 Transaction Figures: A/C Balance
 List of Vendor Line Items
 Vendor List
 The vendor open item list
Inventory
 Inventory Valuation Report
Asset Accounting
 Asset Balances Report
 Posted depreciation by asset and posting period
 The asset history sheet
 The depreciation run for planned depreciation
Cost Center
 Cost Elements: Master Data Report
 Cost Centers: Master Data Report
 Totals report for cost centers
Order
 Actual/Plan/Variance
Projects
 Revenues/Expenditures/Receipts
 Period Comparison - Actual
 Revenues: Actual/Plan Comparison: Periods
Finance

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 Supplier Master
 Customer Master ( General)
 Business Partner ( General)
 Assignment Between Customer and BP
 Assignment Between Vendor and BP
 Purchase Request
 Purchase Order - Header
 Purchase Order - Item
 Sales Orders
 Material Master - General
 Material Master at Plant level.
 Purchase Info
 Material Valuation
 Delivery Documents Header
 Shipment - Header
 Invoice Receipt
 Stock report.
 Warehouse transfer orders – Header
 Planned Order
 Consistency Check
 Material Document Item level
 Material Document Header level
 Pricing Condition
 Inventory Balances
Logistics

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Learnings
 Discovery / Assessment Phase
 Multiple Mock Runs
 Change Freeze
 Performance Testing
 Time taken for Ramp Down and Ramp Up activities
 Reporting Data SYNC
 Integrations with III party systems during Ramp Up
 Hot Line with Vendors – SAP, Infrastructure
 Meticulous Cutover planning
 Automated data validation

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Business Digitally
Kaar Technologies Inc.
kaartech @kaartech in Kaar Technologies G+ Kaar Tech

Technical Walkthrough of SAP S/4HANA System Conversion

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Technical Walkthrough of SAP S/4HANA System Conversion