Method: IF_EX_WRF_REF_BADI~CHECK_LISTING_DATES
Method: IF_EX_FRE_REFMODCALL_BADI~REFMOD_CALL
Method: IF_EX_FRE_REFMODCALL_BADI~REFMOD_READ
Method: IF_EX_FRE_REF_MATLOC_SEND~CHECK_REF