Can I change the pop-up notification messages for Pre-Order Manager?

Yes, the pop-up notifications can be change at Settings page under App Settings.

Yes, the pop-up notifications can and change at App Settings.

  1. Part of the order will be pre-ordered - This message will prompt if the customer add more than the available quantity to cart and part of their order is under pre-order. You can use :stock to show the available stock.
  2. Pre-order limit exceeded -  This message will prompt if the customer added more than the specified pre-order quantity. You can use :limit to show the pre-order quantity. To change the pre-order quantity, you can refer to this article.
  3. Limits exceeded on cart page - This message will prompt in the cart page if you have any items that met the criteria of item 1 and 2.

Related Articles:

How can I limit the quantity of products for pre-order?

Why is part of the order displayed under Pre-Order items in the cart?

How do I notify customers if part of their order will be on pre-order?