How do I save an article/survey as a draft?

When you start to publish an article or survey, in the ‘2. Just a few details first’ section, you need to unselect the checkbox ‘This article will go live on its Effective Date. Deselect this box to keep it as a draft for future use’. This will allow you to edit the article or survey until it passes the Effective Date selected. If you are therefore unsure of the Effective Date for it, it would be advantageous to put it quite far in the future so as not to risk going past this deadline. If the article or survey isn’t unmarked as a draft by it’s Effective Date then it will never be published on the app.