Slack new member checklist
Slack new member checklist: the 5 actions that predict week-1 retention
The strongest predictor of whether a new member is still active in your paid Slack community at month three is whether they did one specific thing in week one. Most operators run that retention number blind because they have no checklist to track against. This page gives you the checklist, the reasoning behind each item, and what to do when a member skips one.
TL;DR
Track these five actions for every new member: posted in #intros, picked a goal track, subscribed to two channels, replied in a thread, opened the workspace on day 4 or later. A member who does at least one converts to month-3 retention at roughly 3× the rate of a member who does zero. The checklist is here for free; Foothold tracks it for you and DMs the right nudge when a member stalls.
Why these five
The shape of week-1 churn in a paid Slack community is consistent: most cancellations come from members who did exactly nothing visible in their first seven days. A member who never posted, never reacted, never picked a goal track and never replied in a thread is a member you cannot serve, because you never learned what they joined for. By month three, they cancel and the operator is left guessing why.
The checklist below is engineered around two ideas. First, every item is something the operator can see — either as a Slack event the workspace fires, or as a member preference you can capture once. If you cannot detect it, you cannot intervene on it. Second, the items are independent: a member who posts in #intros but does not subscribe to channels gets a different follow-up from a member who subscribed but never posted. Five binary signals give you 32 possible states; that is enough variance to actually run a meaningful day-3 nudge.
The checklist
1Posted in #intros
The single highest-signal week-1 action. A member who posts an introduction is publicly committing to participate. The tone of the post (long vs. short, polished vs. casual, with a question vs. without) also tells you what kind of community member they are likely to become.
Detect: Slack message.channels event with channel = #intros and user = new member.
Why it predicts retention: introduction posts attract reply traffic. A member who got 4–6 replies in their first 24 hours has a social hook into the community that lasts months.
2Picked a goal track
Ask the member, in the day-0 DM, which of three options brought them here: find peers, get feedback on work-in-progress, or hire / be hired. Three is the right number — fewer collapses signal, more is choice paralysis. The answer drives every later message.
Detect: button reply on the day-0 DM stored against the member ID.
Why it predicts retention: the goal track is the only honest way to send a relevant day-3 nudge. Without it, every nudge is generic, and the bot gets muted.
3Subscribed to (or unmuted) two channels
The default Slack experience for a new member of a 25-channel community is overwhelming. Reducing the sidebar to the two channels that match their goal is the difference between “I’ll come back later” and “there’s a thread I want to read.” Recommend two specific channels by name in the day-0 DM, keyed to the goal track.
Detect: channel_joined event for two channels other than #general / #random / #intros.
Why it predicts retention: a member with a 25-channel sidebar opens Slack once, gets overwhelmed, closes it. A member with a 5-channel sidebar opens Slack and sees something specific to their goal.
4Replied in a thread (any thread)
Posting in #intros is a one-shot action. Replying in a thread is the move that turns a new member from broadcaster into participant. A first thread reply — even a single emoji — predicts later participation roughly as well as the introduction post itself.
Detect: message.channels event with thread_ts set and user = new member.
Why it predicts retention: thread replies are how Slack communities form sub-relationships. A member with one named friend in the workspace stays months longer than a member with zero.
5Opened the workspace on day 4 or later
The four actions above are about doing. This one is about coming back. Slack’s presence-tracking is unreliable as a public signal, but you can detect a returning member by any subsequent message, reaction, or read-receipt event after day 4. A member who joined, did nothing for three days, and never came back is in the high-risk cohort — the day-7 scorecard should flag them by name.
Detect: any user-attributed event (message, reaction, channel_joined) on or after day 4 from join.
Why it predicts retention: members who never re-open the workspace after week 1 cancel within 60 days at roughly 80%. Members who re-open at least once cancel at 30%.
What to do when a member skips an item
The checklist is not a thing you show the new member. It is a thing the operator (or the bot) tracks behind the scenes. The conversion of the checklist into a meaningful intervention happens at three points:
- Day 0 DM — covers items 1, 2, and 3 with one ask each. (Detail in slack onboarding template.)
- Day 3 nudge — if the checklist has zero or one items checked, send a targeted nudge keyed to the goal track. Not a generic reminder; one specific suggestion (“you said you joined to find peers in the early-stage cohort — here are three threads from this week worth jumping into”).
- Day 7 scorecard — the operator gets a one-page summary listing every new joiner from the week, what they completed, and which 1–3 deserve a personal DM from the operator. Personal DM from a human + 80% of the value of the bot — the bot’s job is to surface who, not to do the human’s job for them.
Use the checklist without our product
You don’t need a tool to use this checklist. The cheapest version is a Google Sheet with a column per item and a row per new member. Update it by hand on Friday afternoons, one row per joiner that week. For a community of 50 new members a month, that is about 20 minutes of operator time. The DMs and nudges still get sent by hand, but you now know who needs them.
The version that does not require Friday afternoons is a bot that detects the events, sends the nudges, and emails you the scorecard. That is what Foothold is for — one-click Slack OAuth, three-touch flow, public pricing $49/$99/$199.