How Warmly Delivered LinkedIn Outreach in 2 Sprints With Salesflow PaaS

Warmly was built on a simple but powerful idea: if you know who’s visiting your website, you can turn those moments into revenue.

Their platform identifies anonymous visitors, enriches them with firmographic data, and surfaces high‑intent signals in real time.

For customers, it felt like having a live feed of potential buyers walking through the door.

But there was a catch: while Warmly could spot the right prospects, users still had to leave the platform to reach them.

That missing link set the stage for one of Warmly’s fastest, most impactful product launches yet. 

The “Should We Build It?” Conversation

The request from customers was clear: “This lead signal is great, now how do I reach them on LinkedIn?”

The answer wasn’t simple.

LinkedIn doesn’t offer a public API for outreach. Any in-house attempt would mean reverse-engineering automation logic, handling compliance and rate limits, and staying ahead of every platform update, all while pulling engineers away from Warmly’s core product roadmap.

The math was depressing: 6-9 months of dev work, a permanent maintenance burden, and no guarantee the result would match the polish or safety of a purpose-built solution.

The Turning Point

Instead of committing to a costly, high-risk build, Warmly’s team looked at the problem differently:

• The real goal wasn’t “build LinkedIn automation”: it was to give their customers an instant, compliant way to act on our lead signals without leaving Warmly.
  
• That meant looking for a partner with the infrastructure, compliance logic, and API flexibility to drop directly into their product.

That search led to Salesflow PaaS.

Building on Proven Infrastructure

Salesflow’s public API offered exactly what Warmly needed:

• Campaign management endpoints to import leads into pre-built LinkedIn outreach flows.
• Two AI conversation endpoints: one to receive all campaign conversations, another to send targeted messages, enabling Warmly to layer its own AI logic on top.
• Proprietary safety layer to handle LinkedIn rate limits, compliance, and human-like behavior simulation.

The integration wasn’t just fast, it was measured in sprints, not quarters:

• Core API connection: under 2 sprints
• Full UI with analytics dashboards: about 8-10 weeks

That, coupled with Salesflow’s API documentation and responsive support team kept Warmly’s devs unblocked and in control.

The Result: A Seamless End-to-End Workflow

Today, Warmly users can go from “visitor identified” → “lead enriched” → “LinkedIn outreach” without leaving the platform.

Behind the scenes:

• 1,000 seats licensed on Salesflow’s infrastructure
• Hundreds of active accounts (and growing monthly)
• Less than 5% support ticket rate
• All LinkedIn changes handled by Salesflow, with zero maintenance load on Warmly’s team

And commercially? 

Warmly offers one free LinkedIn seat in its pricing plan, letting customers experience the value before expanding into paid seats, creating a recurring upsell revenue stream, and boosting product stickiness.

Key Outcomes

Why This Matters

Warmly didn’t just “add LinkedIn outreach.”

They rewrote their product story from “we give you leads” to “we help you start the conversation.”

By choosing to build on Salesflow’s PaaS, they delivered what their customers were asking for, fast, while keeping their engineering focus where it belonged.

The win wasn’t just technical or commercial. It was strategic:

• A complete, sticky customer journey
• A new revenue line from day one
• No sleepless nights over compliance or platform changes

Want to give your customers the same leap forward?

Embed LinkedIn outreach in your platform with Salesflow PaaS. Find out more here.