Welcome to BYC.I’m going to be ordering some call duck eggs soon, any tips for a first time hatcher?

I have never hatched ducks. Here is a link to a thread that may be helpful. I have heard call ducks often need assisting because of their short bills.
https://www.backyardchickens.com/posts/25357063
If you put in the search bar "call duck hatching" you will find many threads on the topic.
Good luck!