in this case, at least you will make two wrong invoices. At most, you will make a mistake in all invoices from which wrong number started to the last invoice at the end of last month.

what you need to check is all the stubs to see how many invoices are wrong. Then consult your tax administrator to see how to handle it better.

if only two invoices are cross-linked, there is actually no difference in tax payment, but the other party can't pass it when it takes it back for online verification. If you are responsible, issue a red ticket this month, write off all the wrong tickets, and then reopen them to customers.

If there are a lot of mistakes in a row, and I can't contact the customer, I really think this is a very troublesome thing, and I need to consult your administrator to see what to do.