PayPal config

Hi v 3.0.3.8

I assume PayPal Express checkout is the correct one to use ?
I have entered the paypal API details in "Show Advanced" and enabled the extension.
Then when I click the "Configure Live" I get error "page requested not found" it is looking for admin/&displayMode=minibrowser
Any ideas or am I using the wrong PayPal extension ?
Thanks
Roy

The PayPal Commerce Platform extension is the latest extension that they recommend. Make sure you download the latest version from the marketplace as the one included with OpenCart has lots of bugs.

The new extension seems to ok to take the payment, but nothing is coming back to opencart with details of the sale.

Are there other settings I need to make ?

Thanks Roy

Have you set all the settings in the extension? If so switch in the debug mode and look at the messages in the error log when you place an order. Also check your PHP error log.