VALUE(LIFNR) TYPE LFM1-LIFNR OPTIONAL
REFERENCE(I_LIFNR) LIKE LFM1-LIFNR
VALUE(I_LIFNR) LIKE LFM1-LIFNR
VALUE(IP_LIFNR) LIKE LFM1-LIFNR
VALUE(IM_LIFNR) TYPE LFM1-LIFNR
VALUE(PI_LIFNR) LIKE LFM1-LIFNR