The Exclusion Calendar lets admins define specific dates when Matter should pause notifications and activity. This helps ensure messages and reminders are not sent on company holidays or other days when teams are offline.
Who can use this: Workspace Owners and Admins on every plan. Works the same for Slack and Microsoft Teams workspaces.
For everything on this topic, see the Workspace admin collection.
Exclusion dates can be set at both the workspace level and the channel level. All exclusions are additive, meaning Matter will honor both workspace and channel exclusions together. Workspace-level exclusion dates apply to all channels. Channel-level exclusions apply specifically to the channel only.
What happens on exclusion dates
When a date is added to the Exclusion Calendar, Matter adjusts behavior as follows:
Celebrations: Celebrations are treated like a weekend and will be delivered based on your weekend delivery setting.
Feedback Friday: Skipped on exclusion dates.
Surveys: Applies to Pulse, Custom Surveys, and Onboarding Surveys. These dates are treated like a weekend.
Matter notifications and reminders: All Matter notifications and reminders are skipped on exclusion dates.
Who can use the Exclusion Calendar
Available on every plan
Can be configured at the workspace level
Can also be configured at the channel level
Channel exclusions add to workspace exclusions rather than replacing them
Add an exclusion date
Open the web app.
Go to Settings (for the whole workspace) or Channel Settings (for one channel), then the General section.
Scroll down to the Exclusion Calendar section and click Add Exclusion Date.
Choose the date and click Save.
The date will appear in your exclusion list immediately.
Remove an exclusion date
Go to Settings or Channel Settings, then General, and scroll to the Exclusion Calendar section.
Find the date you want to remove.
Click Remove.
Once removed, Matter will resume normal behavior for that date.
Best practices
Add company holidays at the workspace level to cover all channels
Use channel level exclusions for team specific days off or events
Review your Exclusion Calendar at the start of each year to keep it up to date