In a new item request, what's the difference between submit and quick submit?

In Quick Submit the following fields are filled automatically: new item request name, number and description. Where as in Submit, you enter the new item request name, number, and additional details across multiple windows.

You can only append a single item when using Quick Submit. But you can append more than one item when using Submit.

The table shows which fields are automatically filled based on the number generation method.

Rule or Sequence Generated Numbers	User-Defined Numbers
The new item request number is automatically generated The new item request name is same as item number The new item request description is similar to item description	The new item request number and name are same as item number The new item request description is similar to item description