# How to re-issue an invoice for a different date

KB87

If a Sales invoice has been issued for the incorrect date and the customer has already received that invoice, you cannot change the invoice.

Instead, you should reverse (credit) the invoice and re-issue on a new date as follows:

1. Go to the original invoice and Duplicate
   1. Set the date to be the date on which you want the original invoice reversed
   2. Make all the quantities negative. The total invoice value will be a full credit of the original
   3. Make notes in the Memo section about why it is being done and when it will be re-issued
2. Go to the original invoice again, and Duplicate
   1. Set the date of the invoice to the new issue date
   2. Make notes that this is a re-issue and reference the original Invoice #

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