Cancel Invoice errors
Invoices that could not be cancelled after the order was cancelled.
Open Cancel Invoice Error
The link opens the screen directly in the Integration Dashboard.
Why Odoo refuses
Many Odoo setups prevent a posted invoice from being cancelled, because it breaks the accounting number sequence. That is correct accounting behaviour, not a fault.
Other causes
A payment is registered against it — that must be undone first.
A locked accounting period.
Insufficient rights.
The fix: use a credit note
Change Cancel Invoice Type on the Accounting tab to Credit Note. Instead of trying to cancel, the connector issues a credit note reversing it — accepted by every Odoo setup and leaving a clean audit trail.
Retry once the cause is fixed
Fix the cause first, in Odoo or in your settings, then press Retry on the row. Retrying without fixing the cause fails with the same message.