Lisa,
I would add to make sure you place the NTE in the proper group if the inbound system is sending it as a part of a group.
Also I would suggest making the segment optional.
Don’t forget to do a Reconfigure in your Xlate to pick up the modified variant.
Based on your description I am going to guess you are not using a variant currently so you will need to create one.
email: jim.kosloskey@jim-kosloskey.com 29+ years Cloverleaf, 59 years IT - old fart.