How does inventory management work for simultaneous orders in drop shipping?

[Leukismarket]

I have a question… what if I’m doing a drop and there might be a lot of customers that are trying to buy my product but I don’t have enough inventor for everyone?
- Will there be any chances of a “ghost order” where 1 customer will get the product, and another 1 won’t (but will get confirmation email and everything)? 

- what if 2 customers purchase the last product at the same time ? What will happen? Who determines who gets what? Does Shopify update based on what’s in cart? 

[Leukismarket]

Also, what if someone is at checkout and them sells out while they are in the process of putting payment info in? 

[made4Uo]

Hi @Leukismarket,

I has not happened to me yet but the Shopify should catch this on checkout. That is one of the reason that Shopify checkout takes a little time to load. You have to make sure that you do not click the "continue selling even out of stock". If for some reason, you sell the out of stock product by accident, just send a message to the customer and issue a refund. 

[Leukismarket]

Thank you.