To sort out this error right away, follow the steps given below and update your bank account:
1. Open QuickBooks and select the Banking tab.
2. Select the tile above your bank account. It will allow you to update a specific bank account.
3. Click the Update button and then follow the on-screen steps to complete the action.
4. After the update, close the window.
If you need more assistance to resolve QuickBooks error 400, call us on our toll-free number (+1 800-579-9430) and communicate with certified QuickBooks professionals.
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