Inbound email creates a ticket but the ticket number is wrong or reset unexpectedly.
This is typically caused by using a heavily modified/third-party version of osTicket that overrides the ticket numbering sequence. The core vanilla osTicket uses sequential or configurable number formats without resets. Only vanilla osTicket is supported on the forum.
Originally sourced from forum.osticket.com . osFAQ.org summarises community knowledge for quick reference.
Helpful
Report an error