Hi,
You need to connect to your database (default MySQL) and issue a delete command
DELETE FROM ticket
DELETE FROM ticket_history
DELETE FROM article
DELETE FROM article_plain

Above deletes all tickets in the system. Otherwise use the where clause
 Best Regards,
Sujeeva Tissaarachchi 

      From: Personal Técnico <tecnicos@caos.uab.es>
 To: otrs@lists.otrs.org 
 Sent: Thursday, 22 September 2016, 18:21
 Subject: [otrs] Delete some tickets

Hi,

I'm running OTRS 5. For testing purposes, I created some tickets that, 
now, I would like to delete. How can I remove them? Directly from database?

Thanks.
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