eclecticphilosopherdesigner on "[Plugin: WooCommerce PayPal Express Checkout Payment Gateway] Payment complete, order in processing, but customer receives error."

I'm currently having the exact same issue as biminico - I get emailed to say there was a cancelled order, and in the checkout the user gets the error 'An error occurred while processing your PayPal payment. Please contact the store owner for assistance.'

The PayPal payment isn't actually made, and so my issue is slightly different to Georgey B's (as described in the OP).

I'm running a brand-new installation of WooCommerce and have the PayPal and PayPal Express options enabled, but no other payment methods. The users get the same error using either PayPal or PayPal Express.

(My site is thankfully not live at the moment, but I would like to start sales in a few days...)

I have tried using a few separate WooCommerce PayPal plugins, but none worked...

I have just installed the 'WooCommerce PayPal Powered by Braintree Gateway' plugin and have just gone through the lengthy process of signing up for a Braintree account... hopefully that'll work once the account is approved...

I would appreciate any suggestions people may have for getting PayPal to work.