You may import accrual-based accounts and convert them to cash basis. Click here "Why Accrual import?"
In the reconciliation section -
Adjust in prior year accounts receivable &/or payable.
Adjust out current year accounts receivable &/or payable.
Finally, is is important that you recognise the GST associated with your accounts receivable & payable values since the GST component should not be part of the reconciling adjustment.
Simply click YES. To expose the section to report the GST component.
Related Article:
Cash vs Accrual Reporting in Tax Forms
GST Reconciliation - Cash GST reporting and Accrual accounting