Can you let us know what you want to use the Due Date field for? Are you trying to set Due Date as Target End?
Have a look here at the new feature in Server that would allow you to do that:
If you're using Cloud then this is not yet a feature, but you can vote on it to show your interest and comment with your usage case!
To see this feature in action check out our recent dependencies demo here: https://www.youtube.com/watch?v=eQu5VsUqyZA Keeping on top of your dependencies is a key part of ensuring project success....
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