Feedback Finds Its Home in Email

Client feedback arrives via a feedback form, API, or external tool. Instead of getting lost in Slack or a separate spreadsheet, Notis routes it directly into the matching Gmail thread as a reply.

Trigger

Webhook received

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

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Action

Reply to email thread

Sends a reply within a specific gmail thread using the original thread's subject, requiring a valid `thread id` and correctly formatted email addresses. supports attachments via the `attachment` parameter with valid `s3key`, `mimetype`, and `name`.

Why this helps

External feedback arrives through multiple channels (forms, surveys, APIs) and gets scattered. You lose track of which feedback relates to which client or project conversation.

  • Centralize all feedback in email, your source of truth
  • Connect external data to the original conversation
  • Reduce fragmentation across tools
  • Build a complete record of client interactions

Setup

Build it in a few focused steps.

  • 1Connect Gmail and get your Notis webhook URL.
  • 2Configure your feedback form or external system to send data to that URL.
  • 3Create an automation: 'When this webhook receives feedback, create a reply in the matching Gmail thread.'
  • 4Map the webhook fields to email data (sender, content, etc.).
  • 5Test by submitting feedback; you'll see it appear as a thread reply in Gmail.

Questions about this workflow

How does Notis match feedback to the right thread?

It looks for matching email addresses, client names, or keywords. You configure which fields Notis uses to find the thread.

What if there's no matching thread?

Notis can create a new email thread or archive the feedback separately. You choose the fallback behavior.

Can I notify the team when feedback arrives?

Yes. Notis can post a message in Slack or send a notification email in parallel.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Gmail. A trigger fires from one place; an action lands in another.

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Slack triggers

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Gmail actions

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Modify email labels

Adds and/or removes specified gmail labels for a message; ensure `message id` and all `label ids` are valid (use 'listlabels' for custom label ids).

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Create email draft

Creates a gmail email draft, supporting to/cc/bcc, subject, plain/html body (ensure `is html=true` for html), attachments, and threading.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Create label

Creates a new label with a unique name in the specified user's gmail account.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Delete Draft

Permanently deletes a specific gmail draft using its id; ensure the draft exists and the user has necessary permissions for the given `user id`.

ActionInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Delete message

Permanently deletes a specific email message by its id from a gmail mailbox; for `user id`, use 'me' for the authenticated user or an email address to which the authenticated user has delegated access.

ActionInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Fetch emails

Fetches a list of email messages from a gmail account, supporting filtering, pagination, and optional full content retrieval.

ActionInstant

Reaction Removed Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.

TriggerInstant

Fetch message by message ID

Fetches a specific email message by its id, provided the `message id` exists and is accessible to the authenticated `user id`.

ActionInstant

New Bot Message Received Trigger

DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` with `is_bot_message=true` instead. Triggered when a new bot message is posted to a Slack channel.

TriggerInstant

Fetch Message by Thread ID

Retrieves messages from a gmail thread using its `thread id`, where the thread must be accessible by the specified `user id`.

ActionInstant

Connect any two apps with Notis in the middle.

Not just Slack and Gmail. Any combination from 985+ integrations.

When this happens · Trigger

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