Under normal circumstances the kernel needs the “Home COO-Service” to locate the new location of the object. But if the “Home COO-Service” is not available the moved objects could not be used. In this case there could be a “Default COO-Service” defined in the properties of the “Current Domain”. The COO-Services in this property will be taken to resolve the object if the “Home COO-Service” is not available.
You can also define in the “Query Scope”, that all users with this query scope search in the “Default COO Service for Moved Objects”.