Shopify provides a number of capabilities and connectors to assist merchants manage shipping and fulfillment efficiently:

Shipping Settings: Merchants can configure shipping settings in Shopify’s admin dashboard, including delivery zones, rates, and options. This involves identifying shipment options (such as standard or expedited shipping), calculating shipping charges depending on weight and destination, and providing free shipping promotions.
Shopify works with major shipping carriers including UPS, FedEx, USPS, DHL, and Canada Post. Merchants can integrate their Shopify store with their favorite shipping carrier to get real-time shipping rates, print shipping labels, and track shipments all from the Shopify dashboard.

Shopify has its own fulfillment network, known as the Shopify Fulfillment Network (SFN), which provides end-to-end fulfillment services such as inventory storage, order picking, packaging, and shipping. Merchants can keep their inventory in Shopify’s fulfillment centers and use SFN’s features to improve order fulfillment and delivery.
Third-Party Fulfillment Integrations: In addition to SFN, Shopify works with a variety of third-party fulfillment providers and apps that provide comparable fulfillment features. These connectors enable merchants to outsource fulfillment operations to third-party companies while still handling orders on the Shopify platform.