How to lock and unlock delivery document
DATA: d_vbeln LIKE likp-vbeln. "For storing vbeln
CLEAR d_vbeln.
d_vbeln = it_vbrp-vgbel.
*---locking delevery document
CALL FUNCTION 'ENQUEUE_EVVBLKE'
EXPORTING
mode_likp = c_e
mandt = sy-mandt
vbeln = d_vbeln
EXCEPTIONS
foreign_lock = 1
system_failure = 2
OTHERS = 3.
CLEAR d_vbeln.
d_vbeln = it_vbrp-vgbel.
*---fun mod to unlock delivery doc
CALL FUNCTION 'DEQUEUE_EVVBLKE'
EXPORTING
mode_likp = c_e
mandt = sy-mandt
vbeln = d_vbeln.
Note: After lock do unlock.