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Slack integration

Slack is where a team notices things, which makes it the best place to put an alert and the worst place to store one. Syncline sends messages into channels when something happens elsewhere, and turns the replies worth keeping into records.

Connect Slack

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7310flows running

6 mintypical setup

2880000events a month

What Syncline does with Slack

<p>Slack is a messaging tool built around channels rather than inboxes. Work gets discussed there long before it reaches a tracker, which is why so much useful information ends up scrolling past at four in the afternoon and is never written down.</p><p>Two jobs follow from that. The first is delivery: a payment failed, a lead filled in a form, a card moved to done, and somebody needs to see it in the next minute. The second is capture: a customer complaint arrived in a channel and it should become a tracked item rather than a memory.</p><p>Syncline does both. Outbound, we post to the channel or the person you choose, with the fields from the source record laid out so the message reads like a sentence rather than a data dump. Inbound, we watch the channels you select and hand each matching message to another app as a structured record.</p><p>Because Slack is the noisiest app most teams run, filters matter more here than anywhere else. You can require a keyword, a specific emoji reaction, a particular sender or a value threshold from the source record, so a channel gets four useful messages a day instead of four hundred.</p>

Triggers and actions

A trigger starts a flow. An action is what Syncline does next.

Triggers in Slack

<dl class="sy-deflist"><dt>New message in a channel</dt><dd>Fires on every top-level message in a channel you select, with author, text and permalink.</dd><dt>Keyword mentioned</dt><dd>Fires only when a message contains one of your words or phrases, which keeps busy channels usable.</dd><dt>Reaction added to a message</dt><dd>Fires when a specific emoji is added, a common way to say file this without typing a command.</dd><dt>New thread reply</dt><dd>Fires on replies inside a thread, with the parent message included so context travels with it.</dd><dt>File shared in a channel</dt><dd>Fires when someone uploads a file, giving you the name, type and a download link for the next app.</dd></dl>

Actions in Slack

<dl class="sy-deflist"><dt>Post a message to a channel</dt><dd>Sends a formatted message as the Syncline app, with fields from the source record inserted where you place them.</dd><dt>Send a direct message</dt><dd>Delivers the same content to one person, matched by email when the source app only knows an address.</dd><dt>Reply in a thread</dt><dd>Adds a message under an existing one so follow-ups stay attached to the original alert.</dd><dt>Update a posted message</dt><dd>Edits a message Syncline sent earlier, which is how a status line stays current instead of repeating.</dd><dt>Add a reaction</dt><dd>Marks a message with an emoji, useful as a quiet acknowledgement that a flow picked it up.</dd></dl>

Fields you can map

<div class="sy-table-wrap"><table><thead><tr><th>Field</th><th>Type</th><th>What it holds</th></tr></thead><tbody><tr><td>Channel</td><td>string</td><td>The destination channel name or ID. Private channels work once Syncline is invited to them.</td></tr><tr><td>Message text</td><td>rich text</td><td>The body, with bold, links and bullet lists supported through Slack markup.</td></tr><tr><td>Author</td><td>user</td><td>Who sent the message, exposed as a display name and a member ID.</td></tr><tr><td>Timestamp</td><td>datetime</td><td>The message time, which doubles as its unique ID inside a channel.</td></tr><tr><td>Thread ID</td><td>string</td><td>The parent message reference, present only on replies.</td></tr><tr><td>Attachment URL</td><td>url</td><td>A link to an uploaded file, valid for members of the workspace.</td></tr></tbody></table></div>

Popular Slack automations

<ul><li>Announce every new Stripe payment over a set amount</li><li>Alert the sales channel when a HubSpot deal changes stage</li><li>Turn messages with a ticket emoji into Trello cards</li><li>Post a daily digest of new Airtable records at 9am</li><li>Ping the assignee when a Notion page is marked blocked</li></ul>

Connecting your Slack account

Authentication OAuth 2.0

What we ask for Installing Syncline asks for a short list of scopes: read the channels you select, post messages, and add reactions. It cannot read private channels or direct messages unless you invite it to that conversation yourself.

Rate limits Slack typically accepts about one message per second per channel for apps, and Syncline spaces posts out so a busy flow never trips the limit.

Questions about Slack

<div class="sy-faq"><details><summary>Does Syncline read every message in my workspace?</summary><div>No. You pick the channels during setup and we only subscribe to those. Direct messages and channels we were never added to are outside the scopes we request.</div></details><details><summary>Can it post as a specific person?</summary><div>Messages arrive from the Syncline app with a name and icon you choose. Slack does not let a third-party app impersonate a member, and we would not want that either.</div></details><details><summary>How do I stop a channel getting flooded?</summary><div>Add a filter to the flow. Most teams filter on an amount, a stage name or a keyword, which usually takes a channel from dozens of messages a day down to a handful.</div></details><details><summary>Are messages delivered instantly?</summary><div>Outbound posts go out within seconds of the source event being read. Inbound triggers use Slack events, so a message usually reaches the next app in under a minute.</div></details><details><summary>What happens if the channel is archived?</summary><div>The run fails with a clear reason rather than disappearing. Point the flow at another channel and the queued messages are delivered on the next attempt.</div></details></div>

Other integrations

Stripe

Stripe knows the moment money arrives, fails or goes back out. Syncline turns each of those events into something your team can see and act on within a couple of minutes.

Trello

Trello is the task board people actually keep updated, because moving a card takes one second. Syncline creates those cards from other systems and reports back when they move.

Airtable

Airtable is where teams build the tracker no off-the-shelf tool provides. Syncline keeps that base fed from your other apps and sends its rows onward when something changes.

HubSpot

HubSpot is the record of who your customers are and how far along they got. Syncline feeds it from the places leads actually arrive, and pushes deal changes back out to the team.

Gmail

Plenty of work still arrives as an email and stays there. Syncline turns matching messages into records in your other apps, and sends mail back out when something changes.

Slack

Notion

Notion holds the pages and databases most teams treat as their second brain. Syncline reads those databases on a schedule and writes rows back, so a page never has to be retyped somewhere else.

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