If you want to not allow channel modifications by default you can change the setting for "Allow Channel Modifications" value" in SETTINGS->CHANNEL MANAGER.
If you need a different invoice template for the bookings from this channel you can use the [[Invoicees|nvoicee]] function. Enter the ID number of the invoicee and all incoming bookings from the channel will be assigned to this invoicee (it does not change existing bookings.
==Common Errors==