WooCommerce PayPal Integration Needed

My WordPress site is already running WooCommerce with the shopping-cart and checkout pages functioning smoothly. What’s still missing is a fully operational PayPal gateway. I need someone to plug PayPal into the existing flow, make sure orders update automatically, and confirm that both sandbox and live transactions settle without errors.

Here’s what I expect once you’re done:
• PayPal API credentials connected and verified (sandbox → live)
• PayPal button and also Apple Pay and debit card visible on the checkout page, styled to match the theme
• Successful payment updates order status to “Processing/Completed” and triggers the standard WooCommerce emails
• Failed or cancelled payments return shoppers to the site with a clear message
• IPN or Webhook notifications enabled so stock levels adjust correctly
• A short hand-off note listing the steps you took and where to update keys in future

Everything else on the store is ready; this is the last piece before I open sales. If you’ve integrated PayPal with WooCommerce before and can keep downtime to a minimum, let’s get this wrapped up quickly.