Only accept channelID that are strings
Only accept channelID that are strings

telefonicaid/notification_server,telefonicaid/notification_server,frsela/notification_server,telefonicaid/notification_server,frsela/notification_server,frsela/notification_server,telefonicaid/notification_server,frsela/notification_server,telefonicaid/notification_server,frsela/notification_server