# Documentation: set up and run XML feed imports on Shopify

Setup guides and reference for Product XML Import by ProXI: feed requirements, supported XML shapes, sync schedule, pricing rules, missing products, multiple feeds and troubleshooting.

- [Getting started](https://productxmlimport.com/docs/getting-started): Install Product XML Import by ProXI, connect your first supplier XML feed, run the initial import and switch on price and stock sync.
- [Managing multiple feeds](https://productxmlimport.com/docs/multiple-feeds): Add, configure, pause and remove several supplier feeds in one store, and understand how products stay attached to the feed that created them.
- [Price and stock sync schedule](https://productxmlimport.com/docs/sync-schedule): How often Product XML Import re-reads your feed on each plan, how runs are spaced across the day and what a scheduled run changes in your store.
- [Pricing rules](https://productxmlimport.com/docs/pricing-rules): Configure the price multiplier, compare-at multiplier and tax flag on a feed, understand how compare-at prices are derived and when to ask for a custom price policy.
- [Products missing from the feed](https://productxmlimport.com/docs/missing-products): What Product XML Import does when a product disappears from the supplier feed, why nothing is deleted, and how the 70 percent safety rule protects your catalogue.
- [Supported XML shapes](https://productxmlimport.com/docs/supported-xml-shapes): The XML layouts Product XML Import recognises automatically: generic product feeds, Google Merchant Center RSS and Atom, nested and flat variants, and multi-file catalogues.
- [Troubleshooting](https://productxmlimport.com/docs/troubleshooting): Fixes for the most common import and sync problems: unreachable feed, zero products found, run stopped by the safety rule, variants not created, missing barcodes and stock not updating.
- [XML feed requirements](https://productxmlimport.com/docs/xml-feed-requirements): What a supplier XML feed must contain for Product XML Import: a reachable HTTPS URL, one element per product, a SKU, a title and a price, plus the optional fields that improve the import.