WooCommerce API & Checkout Fix

I need help untangling two urgent WooCommerce issues on my live store.

First, the external API feed that pushes product data into WooCommerce is no longer lining up with what shoppers see on-site. Prices and stock levels sometimes arrive correctly, then drift out of sync a few hours later. The API endpoint itself is reachable, so I suspect the problem sits inside the mapping or the way WooCommerce is parsing and storing the response.

Second, the checkout process stalls right after customers click “Place order.” The order never lands in WooCommerce, and the shopper is left on a spinning screen. No errors show up for them, but the log fills with generic REST notices. The add-to-cart flow and mini-cart display work fine; it’s only the final submission that breaks.

Here’s what I’m expecting from you:
• Trace and resolve whatever is causing the data mismatch between the API feed and the product information displayed on the site.
• Restore a fully functional checkout so payments complete and orders appear in the dashboard.
• Document exactly what you changed (file edits, plugin settings, or server tweaks) so I can track it in version control.

You’ll be free to use the native WooCommerce REST API tools, PHP debugging, or a staging clone if that speeds things up. Once both fixes are confirmed in staging, I’ll move them to production.