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Notifications keep your team informed when Sigma detects something that needs attention. You control which events trigger notifications and which team members or channels receive them.
notification

Image shows notification settings page on Sigma dashboard

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Notification Types

Flagged Transactions When Sigma’s AI flags a transaction as suspicious or high-risk, an email alert is sent to the team members you designate. This allows your fraud and compliance teams to review and act on flagged transactions quickly without having to monitor the dashboard continuously. You configure which role groups receive these alerts. For example, you can route flagged transaction emails to your Fraud Analyst and Reviewer groups only. Alert Rules When a transaction triggers one of your configured rules (e.g. a large transaction rule or a high-risk country rule), a separate email alert is sent to notify the relevant team members. Alert rule notifications can be routed to different role groups than general flagged transaction alerts, allowing you to direct rule-specific signals to the right people. Slack Notifications Connect Sigma to your organisation’s Slack workspace to receive real-time notifications in a designated channel. Slack notifications are sent for both flagged transactions and alert rule triggers, giving your team instant visibility without leaving their communication tools.

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How to Configure Notifications

  1. Log in to Sigma
  2. Click My Account
  3. Click Notifications
  4. For each notification type, select the role groups that should receive it
  5. To enable Slack, enter your Slack webhook URL in the Slack Notifications section
  6. Save your settings

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Setting Up Slack Notifications

To connect Sigma to Slack:
  1. In your Slack workspace, create an Incoming Webhook for the channel where you want to receive alerts (via Slack’s App Directory → Incoming Webhooks)
  2. Copy the generated Slack webhook URL
  3. In Sigma, go to My Account → Notifications
  4. Paste the webhook URL into the Slack Notifications field
  5. Save
Sigma will send a test message to confirm the connection. Once confirmed, flagged transactions and rule alerts will appear in your chosen Slack channel in real time.
Use a dedicated Slack channel (e.g. #sigma-alerts) rather than a general channel so your team can action notifications without noise from other conversations.