Quick question? Are you dropshipping? If so, you are responsible for ordering the product(s) in your customer's order from your dropship supplier so that they can fulfill and ship out the order on your behalf. Depending on your setup, this is an automatic or manual process.
If there is anything else I can help you with, please let me know.
Dirk | Social Care @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog