Being completed in Weekdone means being in the right category section (usually Progress or Done, but your company might have renamed it to something different).
To move a completed task from Plans to Progress you either:
- Move your mouse on top of the drag handler at the beginning of each line, click the mouse and drag the item to another category, be it Progress, Problems or any custom categories you've created.
- Open the item's dropdown menu from the arrow on the right of the item (it appears when you move your mouse over any item). Choose the Move To action and the category to which you want to move an item.
- Click Done in the item's right hand arrow menu.