I keep getting this error for an order," PayPal Express Checkout is still processing this order's payment. To make sure you get paid, wait for the payment to be successful before fulfilling this order. " I just set up the paypal and I don't see the order there and it didn't process here on shopify. Any help?
So I got in touch with both PayPal and Shopify over Twitter - after some back and forth, here is how the issue (at least my type of issue) was resolved.
When I set up my store and made my products live it was automatically linked to my website's email address (We'll call this Brass Neck Email). After I had 2 orders through, I realised I had not linked this to my PayPal account that was my own email (We'll call that Andrew Email)
So what happened was; 2 of my items were bought on my shop and the money was automatically sent to Brass Neck Email, which a paypal account did not exist for. After these orders were placed, I linked my shop to my own Andrew Email and then proceeded to fulfill and take payment for orders - all the while the two payments to Brass Neck Email were pending, unfulfilled and I had no money.
This was fairly simple - I went onto my own paypal (Andrew Email) account > Settings > Account Settings > Email Addresses > Update > Clicked "+" to add my shop email (Brass Neck Email). I then hopped onto my Brass Neck Email account to verify the email address.
From there my unfulfilled orders and money showed up on my own Paypal. These were waiting "in limbo" for me and were instantly available to withdraw the money and transfer into my bank account.
Hope this helps you! If not - both the Shopify Support and PayPal Support twitter pages were extremely helpful and clear with what was needed!