List of the frequently used Function Module in SAP BW.
1.RRMX_WORKBOOK_DELETE: Delete BW Workbooks permanently from Roles & Favorites
2.RRMX_WORKBOOK_LIST_GET: Get list of all Workbooks
3.RRMX_WORKBOOK_QUERIES_GET: Get list of queries in a workbook
4.RRMX_QUERY_WHERE_USED_GET: Lists where a query has been used
5.RRMX_JUMP_TARGET_GET: Get list of all Jump Targets
6.RRMX_JUMP_TARGET_DELETE: Delete Jump Targets
7.MONI_TIME_CONVERT: Used for Time Conversions.
8.CONVERT_TO_LOCAL_CURRENCY: Convert Foreign Currency to Local Currecny.
9.CONVERT_TO_FOREIGN_CURRENCY: Convert Local Currency to Foreign Currency.
10.TERM_TRANSLATE_TO_UPPER_CASE: Used to convert all texts to UPPERCASE
11.UNIT_CONVERSION_SIMPLE: Used to convert any unit to another unit. (Ref. table: T006)
12.TZ_GLOBAL_TO_LOCAL: Used to convert timestamp to local time
13.FISCPER_FROM_CALMONTH_CALC: Convert 0CALMONTH or 0CALDAY to Financial Year or Period
14.RSAX_BIW_GET_DATA_SIMPLE: Generic Extraction via Function Module
15.RSAU_READ_MASTER_DATA: Used in Data Transformations to read master data InfoObjects
16.RSDRI_INFOPROV_READ
17.RSDRI_INFOPROV_READ_DEMO
18.RSDRI_INFOPROV_READ_RFC: Used to read Infocube or ODS data through RFC
19.DATE_COMPUTE_DAY
20.DATE_TO_DAY: Returns a number what day of the week the date falls on.
21.DATE_GET_WEEK: Will return a week that the day is in.
22.RP_CALC_DATE_IN_INTERVAL: Add/Subtract Years/Months/Days from a Date.
23.RP_LAST_DAY_OF_THE_MONTHS
24.SLS_MISC_GET_LAST_DAY_OF_MONTH: Determine Last Day of the Month.
25.RSARCH_DATE_CONVERT: Used for Date Converstions. We can use in Info Package routines.
26.RSPC_PROCESS_FINISH: To trigger an event in process chain
27.DATE_CONVERT_TO_FACTORYDATE: Returns factory calendar date for a date
28.CONVERSION_EXIT_PDATE_OUTPUT: Conversion Exit for Domain GBDAT: YYYYMMDD - DD/MM/YYYY
29.CONVERSION_EXIT_ALPHA_INPUT: Conversion exit ALPHA, external->internal
30.CONVERSION_EXIT_ALPHA_OUTPUT: Conversion exit ALPHA, internal->external
31.RSPC_PROCESS_FINISH: Finish a process (of a process chain)
32.RSAOS_METADATA_UPLOAD: Upload of meta data from R/3
33.RSDMD_DEL_MASTER_DATA: Deletion of master data
34.RSPC_CHAIN_ACTIVATE_REMOTE: To activate a process chain after transport
Source: Viral Shah
