Hey Kidsland-Co,
I think the closest thing to what you’re looking for is Shopify’s “locations” functionality.
Here’s the official help doc: https://help.shopify.com/en/manual/locations
Enabling/setting-up this functionality will allow your store to have multiple locations in the back-end admin. Each location can have it’s own inventory count.
So you’d want to set up a location for your inventory (Florida) and then another location for your dropshipper (California). However, this only really makes sense to do, if you know what your dropshipper’s inventory count is.
What I’m not sure of is if your ‘3rd party fulfillment email’ will still work with this setup. From what I can tell from the “custom fulfillment service” help doc (https://help.shopify.com/en/manual/shipping/fulfillment-services/custom) is that you have to assign the 3rd party fulfillment email to a product as a whole – I don’t believe you can have the fulfillment email only send when it’s purchased from a specific back-end location.
I’d need some more details on how your dropshipping works in order to better recommend a path forward. If you’re using an kind of Shopify dropshipping app (ex. Printful, Printify, etc.) then you wouldn’t need to track inventory or setup a separate location on the back-end (it should all be automated through the app). If your dropshipper isn’t through an app, then it might make more sense for you to just manually email your dropshipper each time an order is placed.
Otherwise, you might need to make separate products for each location (which I really wouldn’t recommend, as it’ll be confusing for your customers).
Let me know a bit more about how you have things set up, and then I can try to give some more guidance.
Cheers,
Stephen