Here are the steps to manually get rid of this error message on your end:
Thanks for joining the conversation, @resalegroup,
I appreciate your patience with this online banking issue you're getting. I want to make sure you're able to connect your account in QuickBooks successfully.
We have reported issues with the error message when attempting to connect the Connect to PayPal app. This issue has been escalated this to our engineers, and they are looking for a permanent fix for this unexpected behavior.
Since you already followed the workaround provided by @Nemesis-Dinu but to no avail, I'd recommend contacting our QuickBooks Online Care Team. They have the resources to add you to our list of affected users, and can provide additional workarounds to complete your work temporarily. Here's how to get our live support agents:
You can provide this investigation number INV-29427 to our agents to get live email notifications when an update is available for this issue. While they continue to work on this, you can have the customer login to a Chrome Incognito Window (or private browsing window) and attempt to connect the app.
I appreciate your patience as we continue to investigate and implement a permanent fix. Should you need any help or have additional questions with QuickBooks, please let me know by clicking the Reply button below. I'll be around to end you a helping hand. All the best!
I received an email today stating the problem was fixed. It's not. Paypal will still not sync transactions. They shouldn't announce its fixed if its not fixed.
Allow me to share additional information regarding connecting to PayPal with QuickBooks Online.
I'm researching to see if anyone else is having the same issue in connecting their PayPal account with QuickBooks and found that they are still working to resolve this issue.
I know you've already called in. However, I recommend speaking with our QuickBooks Online Support. Agents have the necessary tools to look into your account to locate where the problem is stemming from and to have this re-investigated. However, as more information becomes available, I'll be sure to let everyone know the root.
To reach us, please follow these steps:
For now, as a workaround, let's perform basic troubleshooting steps to check whether this has something to do with your browser. You can use an Incognito browser or a new private window.
Here's how to open a private window in different browsers:
You may find this article helpful: Differences between Connect to PayPal app, Sync with the PayPal app, and PayPal Bank Feeds.
Please extend your patience while we're working for the permanent fix. Don't hesitate to drop me a line if you have other questions about PayPal. Have a good one.
I've done this numerous times, been on the phone with support about 20 times in the past week and they keep having me do the same things over and over. Today they sent an email saying its fixed, ITS NOT. If something doesn't work, you shouldn't keep it going, it should be fixed before up and running again. I signed up for QBO because my business is constructed with Paypal. This is a complete embarrassment and waste of MY time.
Thank you for trying the troubleshooting steps provided by my colleague above to isolate the issue. We also strive to provide our customers with the best customer support available.
Currently, our banking team is still in the process of finding a permanent solution to this issue to have you connect to PayPal.
Also, they are yet to release an update for a permanent fix on May 2, 2019.
We appreciate your patience while we are fixing this. Feel free to let me know if you have other questions.
Hello support. Still waiting for a fix. May 2 and now May 16 has come and gone with no resolution. Please help.
Hello there, @MarkF.
I'm here to help share a little more information about the issue with connecting to PayPal app.
As of now, we haven't received an update from our engineering team about this issue. However, they are all hands together currently working for a permanent resolution. If you've already contacted our Support Team and already been added to the list of affected users, you'll automatically receive an email notification with the latest updates.
In addition, to stay updated with the latest news and updates, you may check/visit our QuickBooks blog.
I appreciate your patience. Please feel free to add a post/comment below if you have any other QuickBooks concerns, I'll be always here to help you. Have a great day ahead!