Hi,
This is a common challenge for many retailers. It's challenging to keep track of inventory. Stitch Labs does not yet integrate with WooCommerce, but it is on our near-term roadmap (expected Q3 2013).
With Stitch, your client will be able to automatically sync WooCommerce and their physical store inventory (with Vend). Inventory syncs in real-time.
Plus, Stitch offers powerful reporting and analytics so your client can better understand what is selling best, and how it varies from store to online.
Sign up here: http://www.stitchlabs.com/woocommerce-inventory-management to be the first to know when the integration is ready.
- Bridge