Salesforce quietly updated Slack’s API terms last week, blocking third-party AI platforms like Glean from accessing message data.
The change immediately broke AI workflows that thousands of enterprises now rely on for unified search and automation.
Why did Salesforce do this? You guessed it – competition.
The Bigger Story
This is essentially vendor lock-in disguised as a terms update.
All those AI workflows that just broke? Thousands run through Slack, but leverage third-party tools instead of Salesforce’s AI tech.
For example, countless companies use Glean to search across all their apps – Slack messages, emails, documents, everything. These tools make employees more productive by instantly surfacing information buried across dozens of platforms.
Salesforce just sabotaged Glean, Bracket, and other competitors by tightening its grip on the data pipeline.
Instead of competing head-to-head on features, it’s forcing customers into an impossible choice: give up the third-party tools you prefer, or lose access to your most critical messaging platform – Slack.
Here’s why this move is so brutal 👇
Most companies have spent months integrating AI tools across their entire tech stack. These tools pull (or push) insights to and from Slack conversations, customer records, and support tickets to automate workflows and surface buried knowledge. Salesforce just broke all of that overnight to push customers deeper into its own AI ecosystem.
The timing isn’t coincidental either. Salesforce has been pushing their AI hard, but customers keep choosing alternatives.
Klarna CEO Sebastian Siemiatkowski is likely feeling vindicated right now. His decision to ditch Salesforce entirely for an AI-native stack suddenly looks less radical and more like smart insurance against exactly this kind of platform squeeze.
Why You Should Care
For compete pros, this is platform concentration risk playing out in real time.
When one vendor controls critical data flows, they can reshape your competitive landscape overnight, and there’s nothing you can do about it.
Remember when we covered LinkedIn blocking Apollo and other sales tools? Same playbook, different platform.
Clearly, this is becoming the go-to move when API access becomes a competitive threat.
I’d also watch how customers respond here. This could be the catalyst that pushes enterprises toward more composable, vendor-agnostic AI stacks, as is the case with Klarna.
Smart money says Salesforce quietly reverses this within weeks. But the trust? That’s a lot harder to rebuild 🤔












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