Checking if object is managed

BIZ TMS Aurelius
1

Is there a function for checking whether an object is managed?

This way, when doing a record update, one can check for the objects status.
If it is managed, then
  call the "Merge" function
else
  call the "Update" function
call "Flush"

2

Yes,:

if Manager.IsAttached(Customer) then ...
Note that if you call Merge when object is in the manager, it just returns the managed object. So probably you don't need to do such checks?