Shopify supports fetching only records (such as orders, products, or customers) that have been created or updated in the last 24 hours via its Admin REST API by using date-based query parameters. These allow you to filter results dynamically based on timestamps in ISO 8601 format.

Using the API to Fetch Filtered Records

For most resources, you can apply parameters like created_at_min, created_at_max, updated_at_min, and updated_at_max when querying endpoints. Here's how it works:

• Calculate the timestamp: Set the minimum date to the current time minus 24 hours (e.g., if now is 2025-10-15T12:00:00Z, use 2025-10-14T12:00:00Z).
• Example for orders (via GET /admin/api/{version}/orders.json): Use ?updated_at_min=2025-10-14T12:00:00Z to get orders updated in the last 24 hours, or ?created_at_min=2025-10-14T12:00:00Z for those created in that period. Combine with updated_at_max or created_at_max for precise ranges if needed.
• Example for customers (via GET /admin/api/{version}/customers.json): Similarly, ?updated_at_min=2025-10-14T12:00:00Z retrieves customers updated in the last 24 hours.
• Products and other resources follow the same pattern in their respective endpoints.

This is ideal for polling or syncing data periodically without retrieving everything. Note that access is limited to the last 60 days by default unless your app has the read_all_orders scope (for orders).

Using Webhooks for Real-Time Notifications

If you prefer Shopify to proactively "send" updates instead of polling, set up webhooks for events like orders/created, orders/updated, products/create, or products/update. Shopify will POST notifications to your specified endpoint whenever a record changes, so you only receive new or updated data as it happens—no need for time-based filters, as it's event-driven. Webhooks don't support retroactive batches (e.g., last 24 hours), but you can combine them with API queries for initial syncs.

For implementation, refer to Shopify's developer documentation or consult their API reference for your specific resource. If you're building an app or integration, test in a development store first.