Create a pre-filled message link

Build a link that opens New Message with a subject and/or recipients pre-filled.

You can link straight to a New Message screen β€” handy inside a requirement, task, or event description. The base is /messages/new on your site (USA: app.rescuehub.com, Canada: ca.rescuehub.com).

  • Pre-fill the subject: add ?subject=... with the text URL-encoded (e.g. ?subject=January%2026%20HazMat%20Drill).
  • Pre-fill recipients: add ?user_ids=676,677 using each person's user ID (found in the URL of their profile). Combine both with &: /messages/new?user_ids=676,677&subject=....

Use a tool like urlencoder.org to encode subjects and comma-separated IDs.