Every GTM strategy is built on assumptions. GTM OS helps you surface them, track whether they're being validated or invalidated, and adapt your strategy accordingly.
Assumption Tracker · Q1 Launch
Teams execute for weeks or months before discovering the foundation was wrong.
Six months of PLG investment wasted because no one wrote down — or tested — whether enterprise buyers actually self-serve on trials.
An entire quarter of content and paid spend poured into a channel that your ICP doesn't actually use. The assumption was never validated.
Hiring plans, revenue forecasts, and team goals built on a sales cycle that turned out to be 8 weeks. Nobody had tested the assumption before building the model.
The Assumption Tracker lets you write down every strategic bet — ICP assumptions, channel assumptions, pricing assumptions — and track their status as Testing → Validated → Invalidated.
When you invalidate a core assumption, you know exactly what to change. The tracker gives you the evidence trail and the signal to adapt — before the damage is done.
“CTOs at Series B companies feel this pain acutely enough to pay for a solution”
“Cold email will generate a 20% reply rate with the right personalization”
“$500/mo is the right price point for the SMB segment”
“PLG will generate 10 trials per week within 60 days of launch”
Five capabilities that make assumption tracking effortless.
Add any GTM assumption in plain text with notes. No special format required — just write down the bet your strategy depends on.
One click cycles the status: Testing → Validated → Invalidated. Track the lifecycle of every assumption without any friction.
Add evidence, experiment results, and observations to each assumption as you learn. Build a living log of what you discovered and when.
Changes debounce and save automatically as you type. Never lose an insight because you forgot to hit save.
Assumptions are stored directly with your playbook data — visible alongside tasks and milestones so context is never disconnected from execution.
The best GTM teams don't just execute — they test, learn, and adapt. The Assumption Tracker makes that loop systematic.
Writing down your assumptions forces you to confront what you don't know — before it costs you a quarter.
When an assumption is invalidated, you know exactly which part of the strategy to revisit — not just a vague sense that something is wrong.
Every assumption and its outcome becomes a record of what you learned — invaluable for future pivots, hires, and investor conversations.
Every part of your strategy rests on assumptions. Start logging them now.
Log your target customer assumptions — company stage, buyer role, pain intensity — and track them as you run discovery calls and collect early customer data.
Track your channel bets explicitly. When cold email underperforms or LinkedIn over-delivers, update the status and add the evidence that drove the change.
Document your pricing assumptions before you go to market. Track what customers actually say in sales conversations and update the assumption log in real time.
Everything you need to know about the Assumption Tracker.
A GTM assumption is any belief your strategy depends on that hasn't been proven yet — about your ICP, channels, pricing, or growth motion. Examples: 'Enterprise buyers will self-serve' or 'LinkedIn will be our primary inbound channel.'
Click the status badge on any assumption to cycle it from Testing → Validated. Add notes to document the evidence — experiment results, customer quotes, or data points that confirm the assumption held.
Yes. Each assumption card has an editable notes field for evidence, experiment results, and context. Use it to record why you validated or invalidated the assumption so you can refer back later.
The assumption is marked with an 'Invalidated' status. This is a signal to revisit the part of your playbook that depended on it — the channel strategy, ICP targeting, or pricing tier that was built on that now-broken foundation.
No. You can add and track assumptions at any point in your playbook execution. Mid-execution discoveries are often the most valuable — logging them in real time prevents institutional knowledge from being lost.
Fix that — with a system built for execution.
Run your GTM, not just plan it.
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