The PreOrder Now feature can work seamlessly with other third-party apps like Shipstation and Product Option.
However, it's essential to understand that while PreOrder Now is compatible with ShipStation and similar shipping and fulfillment apps, it cannot prevent orders containing preorder items from being fulfilled by these apps.
Moreover, if you intend to use a Product Options app alongside PreOrder Now, it's advisable to select one that does not generate hidden variants.
To ensure that everything works smoothly, we suggest taking advantage of our 14-day free trial to test the compatibility of your Product Options app with PreOrder Now.
Please note that certain applications are currently incompatible with the PreOrder Now feature, including:
Buy Button API
Facebook buy buttons
Wish list apps