Cause
This account number does not exist in your accounting plan.
When creating the new year, it is not recommended to delete or change the number of an account if it had a closing balance in the previous year. Otherwise, when generating an Enhanced Balance Sheet with groups with the "previous year" column, an error message will be displayed.
Solution
- Reinsert the deleted or renamed account in the Accounts table.
To add an account, refer to the Edit > Add page. - Update the opening balances using the Actions > Update Opening Balances command.
- Generate the Enhanced balance sheet with groups