Is To Logical ID
Select this field to indicate that the currently selected element is an explicit "To" logical ID.
The "To" logical ID specifies where a particular BOD is to be sent and is placed into the COR_OUTBOX_HEADERS table for the key "ToLogicalId".
The "To" logical ID is normally set to lid://default but can be overridden in the element metadata. For example, in an acknowledgement BOD, this tag is often set as a literal value based on a method parameter, such as P(P1):
BODVERB()BODNOUN()/DataArea/BODVERB()/OriginalApplicationArea/Sender/LogicalID
In an acknowledgement, the actual logical ID of the original sending BOD should be used for the ToLogicalId key value, and selecting the Is To Logical ID check box for an element makes that happen. The "To" Logical ID can be a literal, or a property value on an element.
Only one element in a replication document definition should have the Is To Logical ID flag set.