I would like to flag an error in the invoice received.
'Segnalarle' = se-nya-LAR-le; the 'gn' sounds like the 'ny' in 'canyon'.
Use when you have received a document (invoice, contract, report) with a mistake and need to alert the sender professionally.
'Segnalare' means to signal, report, or flag. It is a useful professional verb for calling attention to something without being accusatory. 'Vorrei segnalarle' is softer than 'noto che c'è un errore' (I note there is an error).
Ho notato un'inesattezza nel documento.
I have noticed an inaccuracy in the document.
'Inesattezza' is softer than 'errore'
La fattura presenta un importo diverso da quello concordato.
The invoice shows an amount different from the one agreed.
Specific to invoice discrepancies; factual tone
Credo ci sia una discrepanza tra l'offerta e la fattura.
I believe there is a discrepancy between the offer and the invoice.
'Discrepanza' is common in accounting contexts
Invoice errors in Italy are corrected via a 'nota di credito' (credit note) or a new corrected invoice. Given the mandatory e-invoicing system, corrections must follow specific procedures through the tax authority's platform (SDI).