To set up Slack notifications for public holidays:
Step 1: Click on the Settings button on the top navigation bar.
Step 2: Select the Integrations option on the left side panel.
Step 3: Under the Special Notifications section, turn on the toggle for Public Holidays.
Step 4: Click on Customize and a pop-up will open up.
Step 5: Use the Slack Channels dropdown to select the relevant channel. We'd recommend choosing one where all your team members are present, so everyone gets notified.
Step 6: Select the frequency of notifications from the dropdown.
Step 7: Click Save to save your settings.