how to differentiate between TECO deletion and manual deletion

hello all,

for a PM Order if system status is set to TECO

deletion flag(XLOEK) is set in RESB table ,

also when a particular material is deleted in iw32 the same XLOEK flag(deletion flag) is set...

now my question is how do i differentiate this i.e whether the flag is set by TECO or by deleting manually...

thanks in advance....