Lack of Support - Begging for assistance addressing their integration issues and it has been nearly impossible to receive any assistance. Only respond via email at the end of the day giving repetitive instructions to uninstall and re install, No one to speak to via phone or real help at all. I highly recommend using alternatives solutions with better support and less bugs.

Lack of OneSaas Support - Begging for assistance addressing their integration issues and it has been nearly impossible to receive any assistance. Only respond via email at the end of the day giving repetitive instructions to uninstall and re install, No one to speak to via phone or real help at all. I highly recommend using alternatives solutions with better support and less bugs.

Integration issues - Ever since Intuit/OneSaaS took full control of this integration, it’s been a nightmare. The new version no longer functions correctly — it only imports partial data from BigCommerce into QuickBooks Online. Shipping charges don’t sync, so invoices and payments never match (payments include shipping, but invoices don’t). Customer addresses are no longer imported, guest checkouts are skipped entirely, and even check payments are marked as “paid,” creating constant reconciliation issues. I’ve spent the past month manually fixing every transaction, adding addresses, and adjusting invoices one by one. BigCommerce support has been great but can’t help since Intuit now owns the app, and OneSaaS has yet to fix these problems despite multiple tickets. This rollout was irresponsible and has seriously disrupted my accounting workflow.

Great Support - Nick is awesome. Has now helped me twice with sync issues. So friendly & helpful.

Integration Broken - After the update on 6th of October the QuickBooks app no longer integrates. Was working perfectly prior to the update, was just told it is now back online and uninstall and reinstall and it will work, I have followed the process and still not working.

Integration Broken - The app updated and the connection has been lost from BigCommerce to QBO, nothing will update. On with the chat yesterday with no resolution. Allegedly in 24-48 hours the legacy app will be be re-introduced and the connection restored. It has been down all week.

Does anyone have it working again yet (10/06-25) - Everything was working fine, then an update has made nothing work. It can't sync with payment methods, it was great before, now basically just doesn't work.

Updates have ruinted it - Everything was working fine, then an update has made nothing work. It can't sync with payment methods, it was great before, now basically just doesn't work.

Great Customer Service - Was having issues with the integration appearing in BigCommerce but had a wonderful talk with Rods who helped troubleshoot the issue with me.

Integration Ruined - UPDATE: 10/15Thanks to these reviews, I decided to contacted support. I chatted with Francis who helped me implement the workaround. He was very patient and helpful. I now have a working system again!I thought I was going crazy until I saw the most recent reviews. I'm also stuck with a new app that doesn't work. I now have a lot more work to do with trying to find an alternative, manually entering online orders into QB, and manually updating inventory on our website. For something this major, we should have been notified about the changes in advance or at least given a tutorial on how this would work. I can't believe this was beta tested at all because there's no way this works for anyone. Poor planning and execution all around.