Ticket

Using my Dolibarr
1

Also please let me know is there any ticketing system is there with this ERP?

2

I use this and it works like a charm: https://www.dolistore.com/en/modules/875-Ticket-management.html

But there are others:
https://www.dolistore.com/en/modules/875-Ticket-management.html
https://www.dolistore.com/en/modules/671-Ticket-Manager.html