Imported from previous forum
In the FIX session level Test document test RefID 2C, it seems to indicate that messages that come in with a MsgSeqNum too low should cause the FIX engine to disconnect without sending a message. In the FIX 4.1 Spec (Message Recovery Section), there is a note that states the following:
NOTE: In ALL cases except the Sequence Reset - Reset message, the FIX session should be terminated if the incoming sequence number is less than expected and the PossDupFlag is not set. A Logout message with some descriptive text should be sent to the other side before closing the session.
Am I interpreting this correctly? Or is there a discrepancy in the way this situation is handled.