/SendMessage Slash Command

Using the /SendMessage Command in Slack

The /SendMessage command is the fastest way to send a message to multiple channels or DMs — right from your Slack composer.

Whether you're announcing a product update, sharing a weekly reminder, or pinging all your customer channels, /SendMessage lets you do it in one go.

How to Use It

  1. In any Slack message box, type:

    /SendMessage [and whatever your message text is here]

  2. An empheral message composer will appear. From here, you can:

    • ✏️ Edit your message

    • 🗂 Select channels or DMs

    • ✅ Add actions like buttons or forms, or images

  3. Hit Send Message. You can then decide if you want to send your message now, or schedule it for later.

Pro Tips

  • Pair messages with Slack Forms for onboarding, feedback, or approvals

  • Save time by setting a Workflow to trigger this message on a schedule or event

  • After sending, you can:

    • View engagement (clicks, reactions, form submissions) from the Analytics tab

    • Reuse the same message for another blast

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