CONV_FROM_RE_AO_FUNCTION_DAT is a standard SAP function module that performs functionality. This is available within standard R/3 SAP systems depending on version and release level.
Below are the pattern details for this FM showing its interface including any import, export and tables parameters. There is also a list of Exceptions and for your convenience any standard documentation available. All this information and more can also be viewed if you enter the function module name CONV_FROM_RE_AO_FUNCTION_DAT into the relevant SAP transaction such as SE37 or SE80.
CALL FUNCTION 'CONV_FROM_RE_AO_FUNCTION_DAT' "
EXPORTING
bapi_re_ao_funct_dat = " bapi_re_ao_funct_dat
CHANGING
bapi_re_ao_funct_int = " bapi_re_ao_funct_int
EXCEPTIONS
ERROR = 1 "
. " CONV_FROM_RE_AO_FUNCTION_DAT