Real-world application of brand messaging

In August 2013 Slack opened its preview release and roughly 8,000 teams signed up inside the first 24 hours. The shorthand travelling with it was "email killer". The press used it, prospects used it, and Slack's own customer research fed it: surveyed teams reported internal email down about 48%. Four years later the line at the top of the homepage was "Where work happens", and email had disappeared from the claim entirely. This lesson follows that one rewrite from the trigger to the funnelfunnelThe customer journey from awareness to purchase, typically Awareness, Interest, Consideration, Decision, Action, with prospects narrowing at each stage.View full definition → numbers it moved, then sets Notion beside it as the opposite bet: a company that handed the message to its users.

What Slack was selling before it could say it

Butterfield had already worked out the answer internally. His July 2013 memo to the team, "We Don't Sell Saddles Here", argued that Slack was selling a change in how an organisation works, and that the difficult part was convincing people a better way existed at all. The product was the medium for that argument.

That is a claim about behaviour, and it sits fine at the top of the stack the foundations lesson describes. The failure was in the market-facing sentence. "Be less busy", the early tagline, promised a feeling. "Email killer" promised a substitution. Neither told a buyer what they would be doing differently on Tuesday morning.

What the funnel was telling them

A substitution claim invites a substitution audit. Anchor on email and the buying committee compares you line by line with software already installed, already sanctioned by IT and already paid for: threading, search, retention policy, distribution lists, legal hold. Every one of those conversations runs on the incumbent's terms, and none of them is about your product's actual advantage.

The claim also took too long to verify. A team trialling Slack for 30 days to cut email still has all of its email at the end of the trial, plus a second inbox. The message was writing a cheque that activation could not cash inside the evaluation window.

Slack's own retention data pointed somewhere else. Butterfield's much-quoted internal figure: any team that had exchanged around 2,000 messages inside Slack was roughly 93% likely to still be using it. Not emails avoided. Messages sent. The variable that predicted revenue lived inside the product, and the message was aiming prospects at a metric outside it.

Why "where" beat "instead of"

"Where work happens" is a location claim, not a comparison. It says the decisions, the files, the arguments and the approvals now live in one place. Three consequences followed from that grammatical shift.

It made the proof self-evident. A team that has moved its work into Slack can see that it has, in the channel list, without a before-and-after email audit.

It gave the claim headroom. Email replacement caps out when email dies, and email has not died. A location claim absorbs integrations, shared channels with suppliers, and workflow automation without needing a rewrite each time the product expands.

And it changed who the buyer was. Substitution is an IT decision. Location is a team decision, which is what land-and-expand selling needs.

Translating one claim down the whole funnel

The ladder the frameworks lesson has you build only earns its keep when each channel says the same thing in its own format. Slack's 2015 film with Sandwich, "So Yeah, We Tried Slack…", is a mockumentary about a team whose work migrates into one place. It is the homepage claim as narrative, not an inbox-reduction ad. Customer stories moved to describing how a named team runs, rather than how much email it stopped sending. Sales conversations started at team level and expanded from there.

The numbers from Slack's 2019 direct listing filing, covering the year ended 31 January 2019: 88,000 paid customers, 575 of them paying more than $100,000 a year, and net dollar retention of 143%. That last figure is the one the message shift was aimed at. Expansion revenue comes from work moving in, channel by channel, which is exactly what the claim promised. Slack's last full reported year as an independent public company put revenue near $900 million before Salesforce closed its roughly $27.7 billion acquisition in July 2021.

The enemy Slack demoted

Naming an enemy sets a ceiling equal to the enemy's flaws. "Email killer" is memorable and it travelled fast, which is why Slack got the coverage it did in 2013 and 2014. It also handed the category definition to email, and category definitions are hard to escape once analysts and procurement teams have written them down.

The move is demotion, not deletion. A substitution argument still works where a buyer is already conducting an audit and wants ammunition: renewal conversations, IT security reviews, procurement business cases. It fails as the top-line claim because it makes the incumbent the reference point for everything you say afterwards.

Consistency after the click

The awareness claim has to survive first-run experience or it turns into a credibility problem. Slack's onboarding taught you the product by making you use it: you learned to send a message by messaging Slackbot, and you arrived in #general and #random rather than an empty screen. Default channels are a messaging decision disguised as a product decision, because they make "where work happens" true within four minutes of signup.

The activation target followed the same logic. If 2,000 messages predicts retention, then every email, tooltip and success conversation should be pushing a team toward message volume, not toward inbox reduction. When the top-of-funnel claim and the activation metric point at different behaviours, one of them is lying, and it is usually the ad.

The counter-case: Notion let its users write the message

Notion built the same category position from the other direction. With a famously small engineering team and no significant paid acquisitionpaid acquisitionVisitors arriving via paid ads or sponsored placements, where you pay a platform to display your message rather than earning visits organically.View full definition → for years, the descriptive work was done by users: the template gallery, ambassador communities, and thousands of YouTube tutorials and Twitter threads explaining what Notion was for. By 2021 the company was reporting user numbers in the tens of millions and raised at a $10 billion valuation.

The bill arrives at comprehension. When your users write the message, the message becomes "it can be anything you want", which is accurate and useless to a first-time buyer with a specific problem. New users landed in an empty page and had to borrow someone else's template to understand the product, which is a slower activation path than Slack's. Notion's own positioningpositioningThe mental space you want your brand to occupy in your target customer's mind relative to alternatives.View full definition → narrowed over time, tightening onto a connected-workspace claim, then onto explicit use cases: docs, wikis, projects. The locational construction Slack arrived at in 2017 is close to where Notion ended up too.

The edge case worth naming: community-authored messaging works when the product's value is visible in a shareable artefact. A Notion template is a message you can copy. Nobody screenshots their Slack channel list. Before you decide to let customers carry your words, check whether they have anything to carry them in.

CMO action items

• Check the grammar of your primary claim. If it contains "instead of", "replaces" or a competitor's category name, you have handed the comparison to the incumbent. Rewrite it as something the customer is doing, in a place, and see whether it still sells.
• Find your 2,000-message equivalent. Pull the usage threshold that separates retained accounts from churned ones, then read your homepage and your top three ads. If they push behaviour that is not that threshold, you are buying users your product cannot keep.
• Run the playback test with real buyers, not your team. Put your headline in front of 20 to 30 people who match your target buyer using Wynter or a comparable panel (Wynter sells message testing to B2B marketers, so treat its content as a vendor's argument) and ask them what your product does. Score comprehension before you score anything else.
• Re-run the claim through onboarding. Whatever the ad promised, the first session has to make it observably true. If it takes a template, a consultant or a two-week implementation, the claim is not yet a claim.

Common mistakes that kill results

• Keeping the enemy at the top for too long. Substitution framing buys early attention and then caps the story at the incumbent's weaknesses. Slack got four years of use out of "email killer" and still had to demote it before it could sell workflow, shared channels and enterprise-wide deployment.
• Letting the community write the primary claim by default rather than by decision. If nobody owns the top line, your most enthusiastic users will supply one, and it will be broad enough to fit their use case and nobody else's. Notion made that trade knowingly and paid for it in new-user comprehension.
• Measuring the message against internal preference rather than funnel behaviour. The question is never whether the leadership team likes the sentence. It is whether expansion revenue, activation rate and playback accuracy moved after you changed it, and whether you instrumented those three well enough to tell.