LSMW操作.docx

LSMW操作.docx

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LSMW操作

DataMigrationof

Non-SAPSystemstoSAP-Systems

QuickIntroductiontoWorkingwiththe

LegacySystemMigrationWorkbench

Version1.8.0

January28,2003

TableofContents

1Introduction4

1.1PurposeofthisIntroduction4

1.2LSMWorkbench:

Whatisit?

4

1.3SupportedReleases4

1.4Costs4

1.5Delivery4

1.6LSMWorkbenchVersions4

1.7Support5

1.8SignificanceofDataMigration5

1.9BasicPrinciplesoftheLSMWorkbench5

2Preconditions7

3StartupandPreparations8

3.1Authorizations8

3.2InitialTransaction8

3.3Project,SubprojectandObject9

3.4UserGuidance10

3.5FieldMappingonPaper12

3.6CreateObjectOverview13

3.7Administration16

3.8Recordings16

3.9PreparationsforUsingIDocInboundProcessing17

4GeneralTipsfortheProcedureinamigrationusingLSMWandDX-Workbench21

4.1SAP-Customizing22

4.2Whichdatashouldbemigrated?

22

4.3Runthemanualprocess22

4.4Whichimporttechniquewillbeused?

22

4.5Createtherecording22

4.6Fillobjectattributes23

4.7Determinethesourcestructures23

4.8CreatetestdatainDX-Workbench23

4.9Mappingonpaper23

4.10Maintainstructurerelations23

4.11Dataexport23

4.12EntertherulesandtestoutofLSMW24

4.13Createproject,subprojectandruninDX-Workbench24

4.14Importthedata24

5DataMigration–StepbyStep25

5.1MaintainObjectAttributes25

5.2MaintainSourceStructures26

5.3MaintainSourceFields28

5.3.1CreateIndividualSourceFields28

5.3.2MaintainSourceFieldsinTableForm30

5.3.3CopySourceFieldsfromOtherSources31

5.4MaintainStructuralRelationships32

5.5MaintainFieldMappingandConversionRules34

5.5.1FortheAdvancedUser:

DisplayVariant,ProcessingTimes37

5.5.2FortheAdvancedUser:

GlobalVariables39

5.5.3FortheAdvancedUser:

GlobalFunctions40

5.5.4FortheAdvancedUser:

ReusableRules—NamingConventions41

5.6MaintainFixedValues,TranslationsandUser-writtenRoutines42

5.7SpecifyFiles45

5.8UseWildcardsinFileNames50

5.9AssignFiles52

5.10ReadData52

5.10.1DisplayReadData53

5.11ConvertData53

5.11.1GeneralRemarks53

5.11.2AdditionalFunctionforBAPI/IDoc54

5.12DisplayConvertedData55

5.13ImportData55

5.13.2ImportDatawithDirectInput55

5.13.3ImportDatawithBAPIorIDocTechnique56

6Recordings57

6.1DetailedDescriptionoftheProcess57

7TransportLSMWProjects60

7.1GenerateChangeRequest60

7.2ExportProject60

7.3ImportProject61

8PeriodicDataTransfer62

9LongTexts65

9.1LongTextsintheSAPSystem65

9.2DetermineTextKeyStructure66

9.3DevelopObjectsforLongTextsviaObject000167

9.4DevelopObjectsforLongTextsviaObject200070

9.5ImportTexts74

10TipsandTricks75

10.1DeterminetheTransactionCodeatRuntime75

10.2SkipaRecord75

10.3SkipAllRecordsofaTransaction75

10.4DuplicateaRecord75

10.5Errormessagesintheconversionlog76

10.6ExtraHandlingfor“POS-IDOCs”76

11UpgradefromLSMW1.0toLSMW1.878

11.1DifferencesBetweenVersion1.0andVersion1.8oftheLSM Workbench78

12TransferofLSMWDatafromVersion1.0toVersion1.880

13UpgradefromLSMW1.5toLSMW1.881

13.1NotesontheUpgradetoLSMW1.881

13.2Corrections81

13.3Developments81

14FinalRemarks83

1Introduction

1.1PurposeofthisIntroduction

ThisintroductionisintendedtoallowaquickentryintotheworkwiththeLegacySystemMigrationWorkbenchVersion1.8（"LSMWorkbench"）.

1.2LSMWorkbench:

Whatisit?

TheLSMWorkbenchisanSAP-basedtoolthatsupportsYouwhentransferringdatafromnon-SAPsystems（"LegacySystems"）toSAPsystemsonceorperiodically.

Thetoolsupportsconversionofdataofthelegacysysteminaconvenientway.ThedatacanthenbeimportedintotheSAPsystemviabatchinput,directinput,BAPIsorIDocs.

Furthermore,theLSMWorkbenchprovidesarecordingfunctionthatallowstogeneratea"datamigrationobject"inanentryorchangetransaction.

1.3SupportedReleases

LSMWVersion1.8canbeimplementedforsystemsthatusethefollowingreleases:

4.6A,4.6B,4.6Cand4.6D.LSMWVersion1.72isavailableforreleasesfrom4.0upto（butnotincluding）4.6.

LSMWVersion1.0canbeimplementedforreleasesolderthan4.0.

1.4Costs

SAPmakesthistoolavailabletotheircustomersandpartnersfreeofcharge.

1.5Delivery

TheLSMWorkbenchisnotpartofthestandardSAPsystem.Ifyouareinterestedinthisproduct,pleasecontactSAPvia:

∙SAPNet（OnlineServiceSystem）:

componentBC-SRV-DX-LSMor

∙SAPNet:

Thereyoufindallavailableinformationanddocumentationandthesoftwareitself（transportfile）.Amongothers,thefollowingaccompanyingmaterialisavailable:

∙ChecklistfortheusageoftheLSMWorkbench

∙PresentationoftheLSMWorkbench（PowerPointpresentation）

1.6LSMWorkbenchVersions

Version1.0oftheLSMWorkbenchwasmadeavailabletoabout350interestedcustomersandpartnersintheframeoftheFirstCustomerShipmentbetweenMarch1998（CeBIT）andmiddleofAugust1998.Theresultingexperiencesandfeedbackweretakenintoaccountinthefurtherdevelopment.

LSMWVersion1.0wasmadegloballyavailableinAugust1998andsincethenhasbeenrequestedmorethan1000times.LSMWVersions1.5and1.6werepublishedin1999.

LSMWversion1.7hasbeenavailablesinceSeptember2000andwasreplacedbyLSMWVersion1.8inFebruary2003.（SAPR/3BasisRelease4.6ismandatoryforVersion1.8.）

Forallpersonsalreadyfamiliarwithversion1.0oftheLSMWorkbench,section11providesacompactoverviewofthemodificationsinversion1.7comparedwithversion1.0.

1.7Support

ForproblemmessagesviaSAPNet（OnlineServiceSystem）,entry"BC-SRV-DX-LSM"isavailableinthecomponenthierarchy.Whenyouenteramessage,pleasespecifythenumberoftheLSMWorkbenchversionyouareusing.（Todisplaytheversionnumber,selectExtrasDisplayLSMWversionintheinitialscreenoftransactionLSMW.）

Note:

IfproblemsoccurafterstepConvertdata,pleasedirectlycontactthespecialdepartmentresponsibleforthemodule（FI,CO,MM,SD,HR,etc.）.AllstepsfollowingthedataconversionarenotLSMWorkbenchfunctions.ThereforetheLSMWteamcannotprovidesupportforthesefunctions.

1.8SignificanceofDataMigration

DatamigrationcomesintheendofSAPimplementation.Atthistime,theSAPsystemisnormallyinstalledandapplicationcustomizingisfinished（inthebestcase）.

AnexaminationofSAPimplementationprojectsbySAPConsultinghasshownthatdatamigrationisabout20%ofthetotalimplementationexpenses.Thisportionmayriseupto40%insmallerimplementationprojects.

Asignificantreductionoftheexpensesfordatamigrationresultsinacorrespondingsignificantreductionofthetotalprojectbudgetandtheprojectruntime.

TheexperienceswiththeLSMWorkbenchinSAPimplementationprojectsareverypromising:

Boththeexpensesandthecostsofdatamigrationcouldbereducedsignificantly.

1.9BasicPrinciplesoftheLSMWorkbench

TheLSM WorkbenchwasdevelopedonthebasisoftheR/2-R/3 Migration Workbenchthathasbeenusedmanyhundredtimesinthepastandisstillusedpresently.

ThefollowingconceptsandtechniquesfromtheR/2-R/3 Migration Workbenchwereadopted:

∙Businessobjectsinsteadofindividualtablesorfieldcontentsaremigrated.

∙Theconversionrulestobedefinedareflexibleandcanbecustomizedintheframeofmigrationcustomizingtomeettheactualsituationintheprojectintheusersystem.

∙Preprogrammedconversionprogramsarenotdelivered.Theseprogramsarerathergeneratedonthebasisofthedefinedrules.

TheLSMWorkbenchwasdevelopedonthebasisofthefollowingprinciples:

∙MostofthefunctionsshouldresideintheSAPsystem.Nocollectionofindividualprogramsondifferentplatforms.

∙ThequalityandconsistenceofthedataimportedintotheSAPsystemshouldbemoreimportantthanspeedandperformanceofdatamigration.

∙Existingknowledgeandcodingshouldbeused.

∙Thedeveloped"mapping"andrulesshouldbereusableandthusbeusedrepeatedlyinprojects.

Onthisbasis,aconceptwasdevelopedthatisrepresentedinthefollowingchart:

SchematicFlowofDataMigrationwiththeLSMWorkbench

ThemainadvantagesoftheLSM Workbench:

∙PartoftheSAPsystemandthusindependentofindividualplatforms

∙Avarietyoftechnicalpossibilitiesofdataconversion:

∙Dataconsistencyduetostandardimporttechniques:

−Batchinput

−Directinput

−BAPIs（BusinessApplicationProgrammingInterfaces）

−IDocs（IntermediateDocuments）

Theimporttechniquetobeusedinanindividualcasedependsonthebusinessobject.

∙Generationoftheconversionprogramonthebasisofdefinedrules

∙Clearinteractiveprocessguide

∙Interfacefordataonfrontendandonapplicationserver

∙Creationofdatamigrationobjectsonthebasisofrecordedtransactions

∙Charge-freeforSAPcustomersandSAPpartners

2Preconditions

TheLSMWorkbenchisatoolthatsupportsdatatransferfromnon-SAPsystemstoSAPsystems.ThemainfunctionsoftheLSMWorkbenchare:

1.Importdata（legacydatainspreadsheettablesand/orsequentialfiles）

2.Convertdata（fromsourceformattotargetformat）

3.Importdata（intothedatabaseoftheSAPapplication）

BeforeyoucanapplytheLSMWorkbench,youabsolutelyneedadatamigrationconcept.Thefollowingitemsshouldbeconsideredinparticular:

∙MakesurethatSAPcustomizingisfinished.

∙Determinethedatacontainedinyourlegacysystemandwhichofthedatawillberequiredinthefuture（withrespecttobusinessoperation）.

∙Decidewhetheritmakessensetousethistoolwithrespecttothe