We've verified we're using the right credentials but nevertheless updated Paypal API's on their site and got new LIVE CREDENTIALS, but haven't added them to the network Store settings yet because we're trying to ensure we get it right in sandbox.
Then we disabled the IPN setting according to another support thread where it stated it's automatic now, no need to set that. We also updated the return URL (it was still set for WooCommerce, thought that was the issues) to: http://www.fromxxxxxxxxxxxyours.com/store/shopping-cart/confirmation (per this support thread: https://goo.gl/mCKvRl)
After payment is approved on Paypal, it redirects back to: http://fromxxxxxxxxxyours.com/store/checkout/confirm/?token=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Then when you click SUBMIT from the page above, it ends up at this URL (that would be the order# is the end): http://fromxxxxxxxxxxxyours.com/store/order-status/1xxxxxxxxxxa/
But we get the "Oops" message in the screen shot? We're setup as Paypal Express instead of CHained Payments at this time since we want to the global cart option and are foregoing any commission to offer a free service for 60+ days.
Problems is, when it directs back to complete it's brining the seller (us at this time) back tot he MAIN store page, and there's nothing there to indicate an order is placed, that is ONLY on the individual SHOP/STORE page. Is this expected behavior? Should they be redirected back to a store? What if they have items from several stores, thought that would be the reason they're brought back to the main site to view their entire order?
PLEASE help, I closed the other thread since there were no response all day, we need this resolved ASAP - is there an escalation process here, or can I request this to be kicked up a level?
Honestly, working with Marketpress is really making me feel like a flippin' idiot - we had far less issues when setting up and configuring WooCommerce to work properly, but really wanted to have the multitude of compatible plugins and great support, but it's virtually impossible to find a quick answer or resolution when searching on critical issues that arise, as has been the case several times...