So just to confirm you are publishing to SCORM 2004 correct?
Do you need to use separate AUs for navigation, or can you handle all within one AU?
Let me know and I will try to give you some more guidance… also here is a post I did a while back:
If you are using AUs then the completion status Lectora can set is only within the AU itself.
If you need to use multiple AUs then here is a pretty good document that might help with understanding the manifest entries:
See: 6.2.2 Calculate the Success Status