When a debtors letter is produced in the system and printed to either a printer or to file, the transaction will be marked as having appeared on the relevant letter. The system will then not allow the same letter to be produced again.
Therefore, the above message indicates that the letter in question has been printed for that debt at some point.
Note: If you select to print a letter to screen, then the letter is not marked as having been printed.
If you need the status of a letter resetting to enable it to be reprinted, then please raise a new case online and reference the title of this article and please include details of the company, the invoice and if it is a Debtor Letter 1, 2 or 3 that needs to be reprinted.