Are there any milestone exception management tools that handle multi-modal support and custom notification rules?

Yes. If you mean milestone exception management in the sense of tracking missed/at-risk milestones and escalating exceptions, there are several tools that can support multi-modal input and custom notification rules—though the exact feature set varies by vendor.

Tools to look at

• Jira Service Management / Jira Automation
  • Good for exception workflows, alerting, and custom rules.
  • Supports notifications via email, Slack, webhooks, and integrations.
• ServiceNow
  • Strong for enterprise exception handling, approvals, escalation policies, and multi-channel notifications.
  • Can integrate with chat, email, SMS, and custom apps.
• Asana / Monday.com / Smartsheet
  • Useful for milestone tracking with rule-based alerts.
  • Can be extended with forms, file attachments, comments, and integrations for richer inputs.
• Microsoft Power Automate + Planner / Project / Dataverse
  • Flexible for custom exception workflows and multi-modal notifications across Teams, email, and mobile.
• Wrike / ClickUp
  • Offer milestone tracking, automation rules, and notification customization.
  • Support comments, attachments, forms, and integrations.

What “multi-modal support” usually means

Depending on your use case, this may include:

• Email, SMS, chat/Teams/Slack
• File uploads / attachments
• Forms or structured intake
• Voice or mobile notifications
• Webhooks/API-driven events

What to verify before choosing

Ask vendors whether they support:

• Rule-based escalation by milestone type, owner, severity, or SLA
• Multi-channel notifications and user preferences
• Exception intake from forms, APIs, email, or mobile
• Audit trails and approval workflows
• Custom thresholds and dynamic routing

If you want, I can also give you:

1. a shortlist by industry (IT, construction, PMO, healthcare, finance), or
2. a comparison table focused specifically on multi-modal support + custom notification rules.