If I

1) add an item (via the inbox or quick add) and specify a project and context and do NOT specify a due date

AND

2) I then display tasks organized by due date

The items I have added appear under "Due Within The Next Week". Why don't they appear under "No Due Date?"

[pvonk]

In context and planning modes, if I sort by "due" and group by "due" I get all tasks with no due date in "No Due Date".

Can you tell us what mode you are using and exactly what settings you have defined in the view bar.

[Brian]

Does the project those actions are under have a due date? OmniFocus will look in both places and use the earliest value it can find.