ConnectBooks needs a QuickBooks feature that your plan doesn't have. Settlements that need this feature fail and show "Error Syncing" until you fix it.
Why it happens
Some QuickBooks plans don't have these features:
Classes: tags that group your sales and fees. ConnectBooks turns these on when your store is set to show numbers by product or category. Simple Start and Essentials don't have classes.
Locations: used when "Override Location Tracking" is on. Simple Start and Essentials don't have them.
Inventory: only on Plus and Advanced.
This often shows up after a QuickBooks downgrade.
How to fix it
Pick one:
Upgrade QuickBooks to Plus or Advanced.
Change your ConnectBooks settings. Go to Stores & Files and click the store. On the Accounting tab, under Accounting Settings, click Settings. On the QuickBooks tab, click Configure Advanced Settings. Turn off "Allow Class Tracking in QuickBooks Online" and "Override Location Tracking", then click Save. If that doesn't fix it, contact support and we'll switch the store to not use classes.
Then, in ConnectBooks, go to Accounting Export. For each settlement that shows "Error Syncing", click the 3 dots and choose "Resend to QuickBooks".
Frequently asked questions
I downgraded QuickBooks by mistake.
Upgrade again under the gear icon > Account and settings > Billing & subscription, then resend.
Can I use ConnectBooks without inventory in QuickBooks?