I use Actionstep to create invoices integrated with Quickbooks. I changed GST option and now it is saying there is an error in Quickbooks with GST - cannot invoice

Hello Office-barlegal,

When it comes to integration issues, I would recommend troubleshooting with our support team directly:

1. In your QuickBooks Online, click the Help menu in the upper-right corner.
2. On the Search tab, click an article and select Contact us at the bottom. Then, enter the details of your concern.
3. Choose how you would like to connect with them: either via Callback or Chat.

Please check this article for our support hours: Get help with QuickBooks products and services.

Please note, we can try to assist however we can when it comes to third-party app integration - however, if the issue lies within the app itself, I would recommend you contact the app developer's support team.

-Ken