How a window works
Each channel has its own on/off switch, start time, and end time. Times use the workspace timezone shown on the page. The start is included and the end is excluded. A window such as21:00 to 08:00 runs overnight.
Dark Windows apply to proactive sends and dials from
campaigns, callbacks,
automations, the API, and MCP. Replies to inbound
customer messages and manual replies from History
remain available.
Channels
You can configure separate windows for Voice, SMS, Email, WhatsApp, Telegram, Slack, Messenger, Microsoft Teams, Discord, Google Chat, and X. Workspaces that opt into beta features also see separate controls for Freshdesk, Gmail, Outlook, Zendesk, ServiceNow, Intercom, Zoho Mail, AgentMail, Instagram, and Zulip. The generic Email window and the provider-specific email windows are independent.API and MCP
GET /api/v1/settings/dark-windowsreturns all channel windows and the workspace timezone.PATCH /api/v1/settings/dark-windowsupdates one or more channels. Channels omitted fromsettingsremain unchanged.- MCP tools:
get_dark_window_settingsandupdate_dark_window_settings.
settings:read / settings:write; MCP also accepts the matching
assistant read/write scopes.