SAP BAPI开发注意事项

BAPI开发注意事项BAPIProcessingTypeRemote-EnabledModuleBAPI。BAPI中的参数都要是passbyvaluepassbyreference。Youcanuseimportexport、tablesparameterscanbeused.AllmessageshavetousetheRETURNparameter.可以使用import、export、tables传递参数。所有的错误消息使用RETURN返回。BAPI开始和结束要有MAPPING定性。returnMessageMessageClass回值中可以传入变量。CLEARreturn.return-type=type.return-id=cl.return-number=number.return-message_v1=par1.return-message_v2=par2.return-message_v3=par3.return-message_v4=par4.MESSAGEIDclTYPE'I'NUMBERnumberWITHpar1par2par3par4INTOreturn-message.TheBAPImustnotinvokeMESSAGEIDclTYPE'I'NUMBERnumberWITHpar1par2par3par4INTOreturn-message.BAPICOMMITWORK少锁的周期。TheBAPImustnotcontainanyCALLTRANSACTION,SUBMITorSUBMITREPORTANDRETURNcommand.在BAPI中不要包含CALLTRANSACTION,SUBMITREPORT,orREPORTANDRETURN等命令。TheBAPImustnotproduceanyscreenoutput.BAPICallscreeMinimizetheuseofreadtransactionthatdependonapreviousdatabaseCOMMITtoavoidlostwaittimefromapreviousupdate.尽量减少使用那些依赖提前调用COMMIT来减少等待时间的读事务。Don’tusetypeCURRintheinterface. AllparametersuseBAPICURR.不要在接口中使用CURR。所有的参数都使用domainBAPICURRDonotuseanINCLUDEstructure.不要使用INCLUDE。如果使用Subroutine，直接在BAPI中进行调用。Donotusetheglobalmemoryareatotransfervalues.不要使用全局变量去传值。DonotuseSETandGETstatements.SETGET语句。14.14.BAPImustcarryouttheirownauthoritychecks.BAPI必须要有他们自己的用户验证。我们所有用户验证都是通过外围进行，所以SAP证。BAPIcannotissueanAorEtypemessage.AnyerrormessagethathasbereportbacktothecallermustusetheReturnparameter.BAPIAEMESSAGEMESSAGERETURN参数返回。EachparametermustrefertoadatastructuresintheABAPDictionary.每个参数必须参考APAB字典中的STRUCTURE。YouhavetocreateseparatedatastructuresforBAPIthatareindependentofthedatastructuresgenerallyusedintheSAPsystemapplication.BAPISAP据结构。Alldatastructurenamesmustbeginwith<namespace>BAPI.所有数据结构必须以<namespace>BAPI命名。BAPIstructurenamesshouldbeasmeaningfulaspossible.BAPI结构的命名要有意义。YoumustnotuseAPPENDandINCLUDEinBAPIdatastructures.BAPIAPPENDINCLUDEAPPEND和INCLUDE会造成冲突，当BAPI的数据结构改变的时候。Alwaystrytouseexistingcentraldataelementsanddomainsforfields.dataelements和domainsOnlyuseonefunctiongroupforallofthebusinessobject.BUSSINESSOBJECTFunctionGroup中。即BAPIFunctionGroup。ABAPIdosenotcauseaprogramtermination(Amessag