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Unit8: Migration AC210
Figure 139: The Phase Model for Migration
Moreinformation about postingmaterial forphase1:All FI documentsfor
phase1thatwillbeusedlaterindocumentsplitting(phase2)shouldundergoa
checktodeterminewhetherthepostingscanbeusedwiththe“newG/L”. This
makesitmucheasiertosubsequentlypostthedocumentsduringthemigration.
Hint: This “check” takes place in the system using Validation of
Document Splitting .
Tomakethemigrationphasemodel“easiertovisualize”,hereisanexample
withconcretefigures: Assumethatthefiscalyearisthecalendaryearandthat
the current date is March 23 of the year 200X. This leads to the following
recommendations:
• Recommendedmigrationdate: January1, 200X+1
• Earliestpossiblemigrationdate: January1, 200X
• Sample activation date for the New General Ledger Accounting if the
recommendedmigrationdateisselected: May1,200X+1
• Activationdateofthedocumentsplittingvalidation(withthecorresponding
scenarioselection): assoonaspossible-nolaterthanJanuary1,200X+1
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AC210 Lesson: Migration
Now assume the following case: Today's Date: October 23, 200X. The
recommendations now are:
• Recommendedmigrationdate: January1, 200X+1
Note: Dependingonthemigrationscenarioanddependingonwhetherthe
newG/LandMigrationCustomizinghaveorhavenotbeenimplemented,
January 1, 200X+2 may be a better date
• Earliest possible migration date: January 1, 200X – This date is only a
theoretical option.
• Sample activation date of the New General Ledger Accounting: May 1,
200X+1 or May 1, 200X+2
• Activationdateofthedocumentsplittingvalidation(withthecorresponding
scenarioselection): assoonaspossible-nolater thanJanuary1, 200X+1
or January 1, 200X+2
More information about posting material for phase 0: If you are using
migration scenarios 3 or 5, document splitting (using a BAdI) must be
post-processed for OIs in phase 0.
Figure 140: Interaction – SAPSupports the Customer
ItisclearthatSAPisnotusingtheSAPGeneralLedgerMigrationservicetocarry
outtheentirenewG/Lproject;theservicewillonlysupportthecustomerproject.
*Theconsultingservicesthatmayberequiredinthiscasearenotincludedinthe
SAP General Ledger Migration service.
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Unit8: Migration AC210
Figure141: ObligatorySAPGeneralLedgerMigrationService–Components
Detailedinformationaboutthecomponentsmentionedabove:
• ServiceSAPGeneralLedgerMigration: SAPServiceformigratingdata
fromtheclassicgeneralledgertothenewgeneralledger
• Servicesessionforscenariovalidationandsystemanalysis(SV):Service
event designed to check whether the migration package ordered by the
customermatchesthecustomer'sbusinessscenario. Todothis,SAPextracts
therequiredinformationfromthecustomersystemandevaluatesthedata
in one of its own systems.
• NewG/LMigrationCockpit: Userinterface(=>UI)enablingthecustomer
to perform the migration, consisting of the “Migration Monitor” and the
“Process Tree”:
– MigrationMonitor: Processmonitorinwhichyoucanseethestatus
and results of the migration.
– ProcessTree: TheprocesstreeresemblesanIMGandmapsall the
steps to be carried out. These depend on the package and are thus
put together on ascenariobasis. In thisway, the customer receives
tailor-madeguidancethroughthemigrationprocess.
• Servicesessionfortestvalidation(TV):Serviceeventcomprisingtechnical
plausibility checks in the migrated data.
The SAP General Ledger Migration service ensures the quality of a project
for migrationtothenewG/L andminimizespossiblerisksconnectedwiththe
project. Asdescribed,theservicesessionsverifytheapproachtotheprojectand
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AC210 Lesson: Migration
theperformanceofthedatamigrationandthereforecontributetoensuringdata
consistencyafterthemigration. TheMigrationCockpitsimplifieshandlingthe
migrationandmakestheprocessconsiderablylesscomplex.
Hint: Previousexperiencewithmigrationprojects(=>asofApril2009,
over100customersworldwidehadalreadymigrated)hasshownthatthe
migrationserviceisanimportantfactorforthesuccessoftheproject.
Figure142: MoreInformationAboutNewG/LMigrationIsAvailable…
Onthewebsite, you can navigatetoan FAQnoteaboutMigration, SAP Note
1070629.
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Unit8: Migration AC210
Lesson Summary
You should now be able to:
• ... Consider the important factors before a migration to the new general
ledgerandmakeinformeddecisionsbasedonthem
• ... OutlinethecomponentsoftheSAPGeneralLedgerMigrationservice
• ... Differentiatebetweendifferentmigrationscenarios
• ... UnderstandthatSAPStandardCourseAC212(=>MigrationtoNew
General Ledger Accounting) is a must, if you want/have to familiarize
yourself with the subject of “Migration”
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AC210 Unit Summary
Unit Summary
You should now be able to:
• ... Consider the important factors before a migration to the new general
ledgerandmakeinformeddecisionsbasedonthem
• ... OutlinethecomponentsoftheSAPGeneralLedgerMigrationservice
• ... Differentiatebetweendifferentmigrationscenarios
• ... UnderstandthatSAPStandardCourseAC212(=>MigrationtoNew
General Ledger Accounting) is a must, if you want/have to familiarize
yourself with the subject of “Migration”
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UnitSummary AC210
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AC210 Course Summary
Course Summary
You should now be able to:
• ... understandthelogicandpossibilitiesofnewG/Laccounting
• ... configureand operatenewG/L accounting
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CourseSummary AC210
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Feedback
SAP AG has made every effort in the preparation of this course to ensure the
accuracy and completeness of the materials. If you have any corrections or
suggestionsforimprovement,pleaserecordthemintheappropriateplaceinthe
course evaluation.
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