ne of the following messages will appear if you are trying to make a change to the schedule and you do not have the permissions to do so. These permissions are managed by the User Access Roles assigned to users.
The User Access Roles can be managed in the Administration ->Access Control -> User Access Roles section. To determine the current User Access Role that is assigned to a specific user, navigate to Administration ->Access Control -> Accounts.
For further information about User Access Roles click here https://support.lightning-bolt.com/hc/en-us/sections/200575230-Administration-Accounts.