Hi Mohammed Khaja Pasha ;
Delivery Completed checkbox provides a lot of fonctionality like an additional delivery is not expected, but is possible. If you prevent posting of migo , you can benefit from system messages 163 and 254.
You want to ensure that the delivery is made before the planned delivery date : Set message 254.
You want to ensure last possible delivery date : Set message 163.
However ;
The open PO quantity of the PO item equals zero.
The PO item is no longer relevant for materials planning.
The PO item is ignored when letters urging delivery of overdue goods are generated.
The PO item can be deleted and archived.
You can specify whether the Delivery Completed checkbox is to be selected automatically.
Regards.
M.Ozgur Unal