Normally, when a user registers through the plugin, he/she is given the role Support User. This role has special capabilities.
However, if you are installing into a WordPress system that already have users who are registered then these users will already have a role assigned – a role that will not have these special ticket capabilities.
These users are likely to get the error message “You do not have the capacity to open a new ticket” whenever they try to submit a ticket.
Here you have two choices:
If you have a lot of users or if your existing role already have capabilities that other functions depend on (such as e-commerce or membership functions) , you will usually want to choose the second option. If you don’t know how to add new capabilities to a role, we suggest you use a plugin like User Role Manager and give the desired role the following capabilities:
Do not give your users more than those 5 capabilities, otherwise they could get administrative privileges.