Channels on slack you need to be aware of and are used by all:
#attendance
Contents
This channel is used to notify your unavailability to your team, team leads and fellow rtCampers.
#help
Use this channel to ask any queries, concerns, software licenses or access to certain pages that you might require for your work. Make sure you tag the team responsible for the kind of help you require along with the message so all members from that team are notified and whoever may be available will help you out at the earliest.