Source

Know where your customers come from. Built for B2B growth teams. Revenue attribution made simple.

[Source @growwithsource]

Episode 3 of the Growth Journal is out! We sit down with @ashl3ysm1th, Founder and Managing Partner of
@vermilionfund.

The best developer GTM companies:

1. Earn trust with developers
2. Win with product + docs
3. Let usage drive growth

@github . @gitlab . @twilio

AI companies that want to win should follow this playbook.

Video: https://t.co/UnowPIlUjs

Blog Post: https://t.co/YkGThfHA6Z

[Source @growwithsource]

Week of April 2, 2026 Updates

We’ve officially migrated Source to a new, faster, and more reliable platform designed to deliver more accurate and stable marketing metrics. This release introduces a fully customizable funnel, deeper visibility into the end-to-end user journey, and a new set of interactive dashboard components including our AI-powered Smart Board (MVP). We’ve also expanded our integrations with support for Google Ads, Google Search Console, Meta Ads, HubSpot, Salesforce, and Calendly, with more on the way. On the data side, we’ve significantly upgraded our event tracking with improved pixel support, including page load events, form submissions, custom events (like stage updates), and server-to-server tracking. The new Source CRM enables user-defined funnels, CRM stage grouping, and unified funnel tracking across both browser and server-side events. New dashboard cards provide clearer insights into website, channel, and acquisition performance, while dedicated pages like User Journey and Explorer unlock deeper analysis. We’ve also introduced key platform improvements including multi-user account access, email-based invites and verification, multi-website support per organization, and an updated paid plan UI. Under the hood, our data pipelines now support all integrations and dynamically scaffold infrastructure based on pixel events, improving both speed and reliability. On the security front, we’ve completed all SOC 2 requirements and are entering the final observation window for full compliance. Additional upgrades include a scheduled penetration test, fully remediated Vanta alerts, deny-first permissions, and a zero-trust architecture across the platform.

[Source @growwithsource]

Week of February 5, 2026 Changelog:

We’ve shipped a new set of improvements focused on giving teams better visibility into their funnel, faster ways to explore performance, and a stronger foundation behind the scenes. This release introduces a new Customer Journey View (see attached screen) that makes it easier to understand how users move from first touch to conversion, along with deeper drill-down details on the Executive Dashboard’s Acquisition Performance card so you can see what’s really driving results. We’ve also added sort and search functionality to both Acquisition Performance and Channel Performance detail views, making it quicker to find the signals that matter. On the integration side, we’ve rolled out Zoho enhancements to improve reliability and data handling, alongside new welcome and “connect your pixel” emails to help teams get set up faster and avoid missing critical data. Behind the scenes, we’ve continued refining the attribution model, made steady progress on a broader database overhaul, and of course shipped the usual round of bug fixes and polish to keep everything running smoothly.

[Mitch Wainer @MitchWainer]

On this week’s episode of Growth Journal, I speak with Bill Macaitis about how AI is reshaping B2B. Barriers to entry are collapsing, opportunity is exploding, and it’s a little terrifying. Standing out matters more than ever.

Episode 2 with Bill Macaitis @SaaS_CMO_Pro out now https://t.co/lW7xfczAMG

#B2Bmarketing #CareerInnovation

[Source @growwithsource]

Growth Journal Episode 1: David Dorman (ex @digitalocean & @grafana ) on PLG, open source monetization, and why attribution still sucks

Blog post: https://t.co/1QZrsW0vgj

Watch the episode on YouTube: https://t.co/MGv1O2QFUm

[Source @growwithsource]

Week of January 5, 2026 Updates

This release introduces multi-touch attribution, giving teams a clearer and more accurate view of how channels and campaigns contribute to pipeline and revenue. We also shipped a set of UI enhancements alongside bug fixes and performance optimizations to improve speed, reliability, and overall usability. Work has begun on our BigQuery migration to support more scalable analytics and reporting, and we rolled out additional security enhancements as part of our ongoing SOC 2 readiness efforts.

Read more about our multi-touch attribution capabilities here: https://t.co/pTa3s95bnl

[Source @growwithsource]

Leak confirms OpenAI is preparing ads on ChatGPT for public roll out https://t.co/yIkMVTIruZ

[Source @growwithsource]

🚀 Week of October 22, 2025 Changelog:

This week’s Source update brings several important improvements across integrations, AI, and data accuracy. We’ve introduced an account selector for Meta integration, making it easier to connect and manage multiple ad accounts directly within Source. Progress continues on our Zoho integration, which will soon enable seamless data syncing from Zoho CRM. We also addressed several bug and data consistency issues, improving the reliability of reporting and attribution insights. In addition, we rolled out key enhancements to AI recommendations, providing more precise and context-aware suggestions for optimizing your marketing performance. Finally, Source’s AI engine has been upgraded to GPT-5, unlocking faster reasoning, richer insights, and smarter automation across the platform.

[Source @growwithsource]

10/12/25 Changelog Updates:

We’ve rolled out several key updates to improve reliability and user experience in Source. First, we implemented a quick but critical database fix, moving everything to a safer server to ensure stability. https://t.co/nqYKcPpdMp and Calendly integrations can now be directly tied to specific stages, giving you more control over scheduling workflows. We also validated the “No CRM” option, which is now tested and working seamlessly end to end. On the integrations side, we resolved an issue with the Facebook connection button to make setup smoother. Finally, a series of UI improvements were made, including addressing the speed bump when deleting stages, to create a cleaner and more efficient user experience.

[Source @growwithsource]

🚀 Week of September 12, 2025 Updates:

We’ve rolled out a series of updates to make Source faster and easier to use. Conversion and funnel tracking can now be set up without a CRM—just enter a success page URL or drop in a JavaScript pixel—making it especially valuable for self-serve SaaS startups. AI Insights now come pre-configured out of the box, and we’ve simplified ad integrations by removing historical data pulls, eliminating confusion while saving resources. On top of that, we fixed a flicker issue and resolved seven UI bugs to deliver a smoother, more reliable experience across the platform.

[Source @growwithsource]

🚀 Week of August 19, 2025 Updates:

We’re excited to share some big updates in this release. First, we officially launched our public beta! We also introduced AI Insights on the Welcome card and rolled out the new Multifunnel UI. To improve data integrations, we’ve now separated Google Search Console from GA connections. On the infrastructure side, we tackled runaway costs, cutting 25% from our AWS bill (with more monitoring planned) and reducing spend on DataDog. These reductions not only make the platform more efficient but will also allow us to pass those savings on to customers in the future. Several onboarding bugs have been fixed, including the “website not connected” issue, navigation glitches when going back to onboarding after viewing connections, and a budget error pop-up that now resolves correctly. We also addressed sync issues with Highlevel/Close, added CTAs to empty widgets, and made progress on the database migration—dual inserts are complete, and the next step is cutting over selections.

[Mitch Wainer @MitchWainer]

Source is a full-funnel attribution tool built for B2B marketers that is AI-enabled. It connects your website, CRM, and ad platforms in one dashboard, then uses AI to show you which channels, campaigns, and content are driving your best leads and customers. So you can double down on what actually works.

[Mitch Wainer @MitchWainer]

40 sign ups over the past 2 days for @growwithsource since opening the public beta! 🤯

The beta feedback has been very helpful - we have a lot of work to do before we officially go live with the GA version. Lots of bug fixes + new features + refactor work. Day by day... step by step... we will get there!

[Source @growwithsource]

@Howmchdidyoupay @MitchWainer I agree! What a nerd! 🤓

[Mitch Wainer @MitchWainer]

🚨 Public Beta: Source is live!

Attribution is broken. We’re building a new AI-powered platform for B2B growth teams - and we’re launching it early.

It’s rough. It’s raw. But it works. If you're tired of flying blind with your marketing spend, Source shows you what organic and paid channels are actually driving the best leads and new customers. It’s a truth machine for marketers who want answers - not spreadsheets.

This is the public beta. You’ll hit bugs. You’ll hit breakthroughs. You’ll help shape the future.

Join us. Rip it apart. Help us make it better. Let’s rebuild attribution from the ground up.

💥 Bonus: The first 100 beta users get free 1:1 consulting time with me. I’ll personally dig into your data, unpack your funnel, and help you steer your marketing strategy in the right direction.

Sign up for the free public beta 👉 https://t.co/NPm5ieJvH6