Have anyone facing problem with BCSG & quickbook link

Hi there, info1003.

It would be my pleasure to provide information about connecting a third party application with QuickBooks Online.

For now, we didn’t receive any reported issue about connecting BCSG to QuickBooks. 

Since you're having a problem linking the app into QuickBooks, I suggest contacting your 3rd-party app provider. They can check the connection and further investigate why you encountered a problem when syncing this two software.

I recommend visiting our blog site so you'll be able to get the latest news about QuickBooks and what our Product Care Team is working on.

You can also refer to this article for some tutorials about the use of the different features in QuickBooks Online: QuickBooks Tutorials.

Please know that you're always welcome to post if you have any other concerns. Wishing you and your business continued success.