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✦ Slack and the Agent InterfaceNarrow moat

Salesforce (CRM) — the future bets

Salesforce is betting that Slack, bought for $27.1 billion, becomes the place employees talk to agents; Slackbot users grew over 150% in a quarter.

The most expensive thing Salesforce bought may become its most useful. The Investor Day pitched Slack as "the best interface for the Agentic Enterprise"1: the place where employees ask agents for answers and approve what they do. In the second quarter of fiscal 2027 Slack delivered its fastest growth in net new annual order value since the acquisition, "as Slackbot users grew over 150% Q/Q"2.

Salesforce growth in agent usage, Q2 FY2027 (%)over 150Slackbot users, quarter on quarter97Agentic work units, quarter on quarterover 240Agentforce ARR, year on yearSalesforce Q2 FY2027 results release
Slackbot use is growing faster than the work units.

The deck adds new products, including Slack Code and Slackbot in channels3, and says "100% of these leading AI companies rely on Slack"4. From the second quarter, Slackbot counts toward Agentforce ARR5, and Slack now reports inside the Agentforce Apps category6.

The bet is that the interface is the moat. If employees spend their day in Slack, and agents answer there, the company that owns the channel decides which agents get used. That is worth more than a chat application's licence fee.

The weakness is visibility. Salesforce has never disclosed Slack's revenue on its own, as argued under Slack's Revenue Was Never Shown Alone, so the bet cannot be checked in dollars.

The 10-K now describes Slack in the same terms: "the conversational interface for the Agentic Enterprise where people and agents work together"7. Slackbot, the agent built into Slack, is described as able to "find answers, organize work, create content, schedule meetings, and take action"8.

The measure that can be checked is Slackbot usage. If Salesforce stops reporting Slackbot user growth, or it falls below 20% a quarter within a year, the interface will have been adopted less widely than the pitch requires.

Moat trajectory: Widening

Slack's fastest NNAOV growth since acquisition in Q2 FY2027.

The number that tests this moat
Reported
Slackbot user growth, latest quarter
over 150% quarter on quarter (Q2 FY2027)

Adoption of Slack as the agent interface; below 20% a quarter within a year would mean the pitch is ahead of the users.

Source: Salesforce Q2 FY2027 results release ↗
References
  1. ReportedThe Investor Day pitched Slack as "the best interface for the Agentic Enterprise": the place where employees ask agents for answers and approve what they do.
    Salesforce Investor Day presentation at Dreamforce, 16 September 2026, Form 8-K exhibit 99.1 - fiscal 2030 framework, clouds per customer, annual order value by cloud, AI customer cohort, ARR uplift scenarios, Slack, M&A framework, the accelerated share repurchase and the GAAP to non-GAAP reconciliation for fiscal 2022-2026. — September 2026 · publ. 16 September 2026 · source ↗
  2. ReportedIn the second quarter of fiscal 2027 Slack delivered its fastest growth in net new annual order value since the acquisition, "as Slackbot users grew over 150% Q/Q".
    Salesforce second-quarter fiscal 2027 results release, Form 8-K exhibit 99.1 - revenue, margins, EPS, RPO, AI metrics, the two new revenue categories, balance sheet and fiscal 2027 guidance - Agentforce, Data 360 and Slack metrics. — Q2 FY2027 · publ. 26 August 2026 · source ↗
  3. ReportedThe deck adds new products, including Slack Code and Slackbot in channels, and says "100% of these leading AI companies rely on Slack".
    Salesforce Investor Day presentation at Dreamforce, 16 September 2026, Form 8-K exhibit 99.1 - fiscal 2030 framework, clouds per customer, annual order value by cloud, AI customer cohort, ARR uplift scenarios, Slack, M&A framework, the accelerated share repurchase and the GAAP to non-GAAP reconciliation for fiscal 2022-2026. — September 2026 · publ. 16 September 2026 · source ↗
  4. ReportedThe deck adds new products, including Slack Code and Slackbot in channels, and says "100% of these leading AI companies rely on Slack".
    Salesforce Investor Day presentation at Dreamforce, 16 September 2026, Form 8-K exhibit 99.1 - fiscal 2030 framework, clouds per customer, annual order value by cloud, AI customer cohort, ARR uplift scenarios, Slack, M&A framework, the accelerated share repurchase and the GAAP to non-GAAP reconciliation for fiscal 2022-2026. — September 2026 · publ. 16 September 2026 · source ↗
  5. ReportedFrom the second quarter, Slackbot counts toward Agentforce ARR, and Slack now reports inside the Agentforce Apps category.
    Salesforce second-quarter fiscal 2027 results release, Form 8-K exhibit 99.1 - revenue, margins, EPS, RPO, AI metrics, the two new revenue categories, balance sheet and fiscal 2027 guidance - Agentforce, Data 360 and Slack metrics. — Q2 FY2027 · publ. 26 August 2026 · source ↗
  6. ReportedFrom the second quarter, Slackbot counts toward Agentforce ARR, and Slack now reports inside the Agentforce Apps category.
    Salesforce second-quarter fiscal 2027 results release, Form 8-K exhibit 99.1 - revenue, margins, EPS, RPO, AI metrics, the two new revenue categories, balance sheet and fiscal 2027 guidance - highlights, income statement, revenue categories and margins. — Q2 FY2027 · publ. 26 August 2026 · source ↗
  7. ReportedThe 10-K now describes Slack in the same terms: "the conversational interface for the Agentic Enterprise where people and agents work together".
    Salesforce Form 10-K for fiscal 2026 (year ended 31 January 2026) - Item 1 business: service offerings, partners, AppExchange and Hyperforce. — FY2026 · publ. 2 March 2026 · source ↗
  8. ReportedSlackbot, the agent built into Slack, is described as able to "find answers, organize work, create content, schedule meetings, and take action".
    Salesforce Form 10-K for fiscal 2026 (year ended 31 January 2026) - Item 1 business: service offerings, partners, AppExchange and Hyperforce. — FY2026 · publ. 2 March 2026 · source ↗
Sources
Generated October 4, 2026