Answer: Open Ordering are the times (typically the first day of each month) that the shop is open for any peg doll orders, including made to order and custom items. Non-open ordering times are when only in stock peg dolls, stickers, keychains, apparel, and blankets are available for purchase. Be sure to sign up for the newsletter to be notified when open ordering times will take place!
Each item (with the exception of painted Mass sets) has the option to subscribe for restock updates. This means you'll be notified via e-mail when that specific item is back in stock, whether that is during the monthly open order event or even before then!
Signing up for restock notifications does not subscribe you to the worthy of Agape newsletter.
Additionally, signing up for restock notifications helps me have a better idea of which items to keep (or put) in stock!