Added custom service url for Slack integration.
Created by: razielgn
This addresses what's been discussed in #6550. I'm still waiting to hear from Slack about the custom endpoint, so we should wait until they say it's good to go. :)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: razielgn
This addresses what's been discussed in #6550. I'm still waiting to hear from Slack about the custom endpoint, so we should wait until they say it's good to go. :)