SAP HR DATA MIGRATION

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SAP HR DATA MIGRATION

Data migration is a major and key task for a successful SAP HR implementation.
Data Migration refers to the process of transitioning data from the AS-IS environment(any non-SAP systems)  to the To-Be environment (SAP ECC HR).  In other words SAP data migration means the data transport from current systems such as Baan, JD Edwards Peoplesoft (any non-SAP systems)  into SAP  systems.

Data Migration Process 

Data migration process steps are as below
1:  Data Preparation and Analysis
Decide the strategy for data preparation. Identifies what data is needed in SAP HR application .It is based on implementation country.
2:  Data Mapping
Analysis phase is to identify the data sources that must be transported into the new system.Identifying legacy data fields to be migrated to SAP. Identification of gaps in requirements & data.
3:  Data Extraction and Conversion
Data Extraction from legacy system and Conversion to a format which is acceptable by SAP.
4:  Data Upload
Data Upload into the SAP HR database using any data migration tools such as LSMW
Group the data to be migrated  such as  core HR data, Time data, payroll relevant data.
5:  Data upload issue identification, resolution and Reload
Categories issues based on kind of error e.g. incorrect configuration, incorrect mapping, incorrect data.
Resolve data errors.
Reload data, if reload is necessary.
6:  Testing and data validation
After the data upload ,there are  number of tools  available to test & validate  data (SAP Standard Reports and SAP Database Tables). 


Infotypes for SAP HR Data Migration

Employee hr master data is maintained in different infotypes. Identify data for each infotype & migrate  those data to infotype tables (IT0000 to PA0000 table ,IT0001 to PA0001 table).Prepare excel sheet for each infotype in a specified format acceptable by SAP. Fields are identified in the upload excel  as mandatory or optional .
Following are important Infotypes for Data Migration

Group HR Data for Data Migration 

Data will be loaded in the following sequence
1. Hr Core Data:
Core HR data are FI Data (Bank data,Cost Centers, GL Accounts, Vendors)  and Organization Structure.
OM data is necessary information to assign employees to the positions, cost center, org units etc so Org Structure is needs to be loaded before employee master data creation in PA module.
2. Required Infotypes for payroll india.

PA Infotypes
PA0000:  IT 0000
PA0001: IT 0001
PA0002: IT 0002
PA0006: IT 0006
PA0008: IT 0008
PA0009: IT 0009
PA0015: IT 0015
PA0014: IT 0014
PA0021: IT 0021
PA0022: IT 0022
PA0023: IT 0023
PA0040: IT 0040
PA0016: IT 0016
PA0041: IT 0041
PA0105: IT 0105
PA0128: IT 0128
PA0185: IT 0185
PA0027: IT 0027 

Time ITs
PA0007: IT 0007
PA2001: IT 2001
PA2013: IT 2013
PA2010: IT 2010 

Payroll (India) ITs

PA0580: IT 0580
PA0581: IT 0581
PA0582: IT 0582
PA0583: IT 0583
PA0584: IT 0584
PA0585: IT 0585
PA0586: IT 0586
PA0587: IT 0587
PA0588: IT 0588
PA0589: IT 0589
PA0590: IT 0590

SAP Data Migration Using LSMW Tool

T Code: LSMW 

Legacy System Migration Workbench (LSMW) is a tool suggested by SAP that  can use for transfer data from legacy systems into SAP ECC System.
It is a very great tool available in SAP to upload large amount of data to the SAP system. Other tool recommended by SAP is eCATT (extended Computer Aided Test Tool). Through LSMW tool we   can create Master data (HR  Master data, Vendor master data, Customer master data) ,transactional data, modify existing master data etc.



Legacy System Migration Workbench (LSMW)  steps

Steps                    Steps  Description
Step 1.                  Maintain Object Attributes          
Step 2.                  Maintain Source Structures        
Step 3.                  Maintain Source Files          
Step 4.                  Maintain Structure Relations
Step 5.                  Maintain Field Mapping & Conversion Rules       
Step 6.                  Maintain Field Values
Step 7.                  Specify Files       
Step 8.                  Assign Files        
Step 9.                  Import Data       
Step 10.                Display Import Data       
Step 11.                Convert Data
Step 12.                Display Converted Data
Step 13.                Create Batch Input Session         
Step 14.                Run Batch Input Session