So my shop, For The Parrots, has up until this point been purely products that I make myself at home and so I have a processing time set of like 3 days. I'm in the process of ordering in treat packets to sell on the shop. Now I could just prepurchase a bunch and update the stock in the store but I want to have an option for people to order the larger sizes that I won't necessarily stock regularly, this means processing time could take up to 2 weeks for me to order from the supplier and get it sent to me.
What is the best way to set this up in my shop? Like if something is listed out of stock people can't place an order on the store, is there an option to set up where if something out of stock people can still order it and just have to fill an acknowledgement that it may take longer to receive?