HR_KR_XSTRING_TO_STRING is a standard SAP function module that performs Convert encoded string to unicode string 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 HR_KR_XSTRING_TO_STRING into the relevant SAP transaction such as SE37 or SE80.
CALL FUNCTION 'HR_KR_XSTRING_TO_STRING' "Convert encoded string to unicode string EXPORTING from_codepage = '8500' " abap_encoding Code page of source encoded string in_xstring = " xstring Source encoded string * out_len = " i Length of source encoded string IMPORTING out_string = " string Output string in unicode . " HR_KR_XSTRING_TO_STRING