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If you search using *HRSFI* you will get a list of all classes related to SuccessFactors.
CL_HRSFI_AC_MONITORING_EMPL Assistance Class for HRSFI_MONITORING_EMPL
CL_HRSFI_ACCESS_SECSTORE Access SECSTORE
CL_HRSFI_APIDICT_DESCSFOBJS DescribeEx of SFObject
CL_HRSFI_APIDICT_LISTSFOBJS Retrieve list of SFObjects from SFSF
CL_HRSFI_C_PARAMS Parameter Customizing Access Class
CL_HRSFI_COMP_AC_MONITORING Assistance Class for HRSFI_MONITORING_COMP
CL_HRSFI_COMP_ACTIVATION Activation of data from SFSF
CL_HRSFI_COMP_CONSTANTS Constants for integration with SFSF
CL_HRSFI_COMP_DATA_EXTRACT Extraction of compensation data
CL_HRSFI_COMP_DATA_IMPORT_WEB
CL_HRSFI_COMP_DATA_LOG_MONITOR Log Data Retrieval for Display in Monitor
CL_HRSFI_COMP_DATA_RESULT Creation of final data structure
CL_HRSFI_COMP_DATA_UPSERT MW based update of comp. planning data
CL_HRSFI_COMP_EXPORT_WEB Message based export of comp data to SFSF
CL_HRSFI_COMP_MAPPING Mapping of data from SFSF to compensation fields
CL_HRSFI_COMP_MESSAGE_HANDLER Message handler for compensation integration
CL_HRSFI_COMP_UTILITIES Utilities for Compensation Integration: Use in BAdIs
CL_HRSFI_COMP_UTILITIES_INTERN Utilities for Compensation Integration: Internal Use
CL_HRSFI_COMP_UTILITIES_SALARY Calculate salary-related fields
CL_HRSFI_CONTROL_CHAR_FILTER Splits Xstring at CR LF
CL_HRSFI_CONVERT_TAB_FILTER Converts a xstring to string tab
CL_HRSFI_DET_PACKAGE_SIZE
CL_HRSFI_EMPL_DATA_DELTA Delta Handling
CL_HRSFI_EMPL_DATA_LOG_MONITOR Log Data Retrieval for Display in Monitor
CL_HRSFI_EMPL_DATA_REPL_REPORT Functions of Report
CL_HRSFI_EMPL_DATA_REPLICATION Replication of Employee's Data
CL_HRSFI_EMPL_DATA_TOOLS Reuse Functions
CL_HRSFI_EMPL_DATA_WEB_SERVCE Send Employee data via Web Service
CL_HRSFI_EX_FILE_NAME Example to construct file name
CL_HRSFI_FB_COMP_FIELD_EXTR Class for BAdI: HRSFI_B_COMP_FIELD_EXTRACTOR
CL_HRSFI_FB_EMPL_DTA_REPL_LABL Class for BAdI: HRSFI_B_EMPL_DATA_REPL_LABEL
CL_HRSFI_FB_ENH_EMPL_DATA_REP Class for BAdI: HRSFI_B_ENHANCE_EMPL_DATA_REP
CL_HRSFI_HEADER_FILTER Deletes the first line of a xstring tab
CL_HRSFI_IM_COMP_ANN_SALARY Class for BAdI Impl.: HRSFI_COMP_ANN_SALARY_FIELDS
CL_HRSFI_IM_COMP_ANN100_SALARY Class for BAdI Impl.: HRSFI_COMP_ANN_SALARY_FIELDS
CL_HRSFI_IM_COMP_BONUS_ACT Class for BAdI Impl.: HRSFI_COMP_BONUS_ACTIVATION
CL_HRSFI_IM_COMP_CURR_POS_DATE Class for BAdI Impl.: HRSFI_COMP_CURR_POS_DATE
CL_HRSFI_IM_COMP_JOBLVL_EESUBG Class for BAdI Impl.: HRSFI_COMP_JOBLEVEL_EESUBGROUP
CL_HRSFI_IM_COMP_JOBLVL_PYSCTY Class for BAdI Impl.: HRSFI_COMP_JOBLEVEL_PAYTYPE
CL_HRSFI_IM_COMP_PAYGRADE Class for BAdI Impl.: HRSFI_COMP_PAYGRADE
CL_HRSFI_IM_COMP_PYGRD_SCLLVL Class for BAdI Impl.: HRSFI_COMP_PAYGRADE_SCALE_LEVL
CL_HRSFI_IM_COMP_SALARY_ACT Class for BAdI Impl.: HRSFI_COMP_SALARY_ACTIVATION
CL_HRSFI_IM_COMP_STD_SALARY Class for BAdI Impl.: HRSFI_COMP_STD_SALARY_FIELDS
CL_HRSFI_MANAGER_DETERMINATION SFI Manager Extraction
CL_HRSFI_REUSE_EMPL_HANDLING HR SFI Reuse methods for employee handling
CL_HRSFI_SESSION_HANDLING Session handling
CL_HRSFI_SFAPI_ASYNC_Q_FACTORY Factory for asynch queries
CL_HRSFI_SFAPI_ASYNC_QUERY_W As
CL_HRSFI_SFAPI_QUERY_WRAPPER Wrappes SFAPI Asynch Queries
CL_HRSFI_SYNCH_COMP_F4
CL_HRSFI_SYNCHRONIZE_EMPL_DATA SFI Integration: Data extraction
CL_HRSFI_TOOLS HR SFI Tools
CL_HRSFI_UNZIP_FILTER Filter to unzip xstring
CL_IM_HRSFI_DEL_COMP_LOGS Imp. class for BAdI imp. HRSFI_DEL_COMP_LOGS
CL_IM_HRSFI_DEL_EXTR_LOG Imp. class for BAdI imp. HRSFI_DEL_EXTR_LOG
CL_IM_HRSFI_MONITORING_LOG_PRG Class for BAdI: HRSFI_B_MONITORING_LOG_PROGRAM
CL_IM_HRSFI_SECSTORE_APPL Imp. class for BAdI imp. HRSFI_SECSTORE_APPL
CX_HRSFI_C_PARAMS Parameter Customizing
CX_HRSFI_COMMUNICATION_ERROR
CX_HRSFI_COMP_DATA_EXCEPTION Exception Class
CX_HRSFI_EMPL_DATA_EXCEPTION Exception Class
CX_HRSFI_REUSE Exception Class for Reuse Package
IF_HRSFI_APIDICT_DESCSFOBJS DescribeEx of SFObject
IF_HRSFI_APIDICT_LISTSFOBJS Retrieve list of SFObjects from SFSF
IF_HRSFI_COMP_ACTIVATION_CUST Interface for BAdI: HRSFI_B_COMP_ACTIVATION_CUST
IF_HRSFI_COMP_DATA_ACTIVATION Interface for BAdI: HRSFI_B_COMP_DATA_ACTIVATION
IF_HRSFI_COMP_DATA_EXPORT Interface for comp data export classes
IF_HRSFI_COMP_DATA_IMPORT Interface for comp data import from SFSF
IF_HRSFI_COMP_DATA_UPSERT Usert of compansation data fo SFSF
IF_HRSFI_COMP_FIELD_EXTRACTOR Interface for BAdI: HRSFI_B_COMP_FIELD_EXTRACTOR
IF_HRSFI_EMPL_DATA_C Constants
IF_HRSFI_EMPL_DATA_REPL_LABEL Interface for BAdI: HRSFI_B_EMPL_DATA_REPL_LABEL
IF_HRSFI_EMPL_DATA_REPLICATION Interface for BAdI: HRSFI_B_EMPL_DATA_REPLICATION
IF_HRSFI_ENHANCE_EMPL_DATA_REP Interface for BAdI: HRSFI_B_ENHANCE_EMPL_DATA_REP
IF_HRSFI_FILE_NAME Interface for BAdI: HRSFI_B_FILE_NAME
IF_HRSFI_LEADING_CONTRACT Interface for BAdI: HRSFI_B_LEADING_CONTRACT
IF_HRSFI_MONITORING_LOG_PRG Interface for BAdI: HRSFI_B_MONITORING_LOG_PROGRAM
IF_HRSFI_REUSE_C Constants for Reuse Package
IF_HRSFI_SFAPI_ASYNC_QUERY Async Query
IF_HRSFI_SFAPI_ASYNC_QUERY_FA Factory to create asynch queries
IF_HRSFI_SFAPI_QUERY General interface for SFSF Query
IF_HRSFI_SFAPI_UPSERT Usert of compansation data fo SFSF
IF_HRSFI_XSTRING_FILTER Filter with xtring as in and output
IF_HRSFI_XSTRING_TO_TAB_FILTER Filter converts xstring to xstring table
ZCL_HRSFI_B_LEADING_CONTRACT Class for BAdI: HRSFI_B_LEADING_CONTRACT
ZCL_HRSFI_EMPL_DATA_REPL_LABEL Class for BAdI: HRSFI_B_EMPL_DATA_REPL_LABEL
ZCL_HRSFI_EMPL_DATA_REPLICATN Class for BAdI: HRSFI_B_EMPL_DATA_REPLICATION
ZCL_HRSFI_TOOLS_UTILITIES Common Class for SF Utilities