“Partner-sourced deals close faster.” Every partnership leader says it in the quarterly review. Heads nod. Nobody asks how much faster, because nobody has the answer ready.
Customer Discovery Efficiency is that answer, and it is one division:
CDE = average days-to-close for direct deals, divided by average days-to-close for ecosystem-sourced deals
Closed-won only, on both sides. A CDE of 1.0 means your ecosystem road is no faster than the direct one. A CDE of 2.0 means a customer who arrives through your ecosystem gets from need to signed solution in half the time.
What the ratio is comparing
A customer with a problem takes one of two roads to you. On the direct road they find you, you qualify them, you run your process. On the ecosystem road, someone they already trust says “talk to these people, this is the shape of your problem.”
Everything else in this metric is a decision about what to let into those two averages. Those decisions matter more than the arithmetic does.
The decisions underneath it
Count only what happened. CDE reads your opportunity records: created dates, close dates, referrer fields. No sentiment weighting, no estimated influence, no model deciding that a partner probably helped. If the score comes back empty, your data is empty, and that is worth knowing before it is worth fixing.
Keep the window recent. A partner who introduced you to three excellent customers in 2022 and nothing since is not accelerating anything today. Lifetime totals flatter dormant relationships. CDE is computed on a rolling recent period so the number describes the ecosystem you have now.
Count customer referrals as ecosystem. We segment the ecosystem side by referrer type, so partner-referred, customer-referred and other-referred sit against purely direct deals. Your happiest customer is doing discovery work for you whether or not anyone gave them a partner tier. Most measurement frameworks in this category ignore that entirely.
Show the median beside the average. One enormous deal that closed in a week will write you an efficiency story you cannot repeat. We compute both. If your average says 2.1x and your median says 1.2x, you do not have a fast ecosystem. You have one good anecdote and a measurement habit worth fixing.
Why speed, of all things
Because discovery speed shows up before the attribution argument starts. Sourced-revenue percentages collapse into debates about who touched what and whose number it was. Days-to-close is harder to argue with. The deal either sat in your pipeline for ninety days or it did not.
And the saving is not only yours. Take an illustrative pair: ecosystem-sourced deals closing in sixty days against a hundred for direct. That is forty days of selling cost you did not spend, and forty days your customer did not spend living with an unsolved problem. That second number is where partnership measurement usually stops and customer-success measurement should start.
Reading your number honestly
First, what I cannot give you. There is no credible cross-industry benchmark for CDE, from me or from anyone else publishing in this space, because almost nobody computes it yet. If someone hands you an industry average for this metric today, they are guessing. What CDE is good for right now is your own baseline and the direction it moves over the next three quarters.
No number at all means your opportunities are not recording a referral source. Fix the habit before the metric. A quarter of honest data beats a year of backfilled guesses.
Around 1.0 means your ecosystem is not accelerating discovery to close. That is not a verdict on whether partners create net-new demand. Volume, win rate and source uniqueness answer that question, not this one. Treat it as a signal to look closer rather than a conclusion.
Comfortably above 1 earns you the next question, which is whether those faster-won customers also succeed and stay. Speed of discovery is the door. Lifecycle contribution is the house, and that is the Customer Success Index, next week.
Where the numbers come from
Worth stating plainly, because a letter about continuous computation should not leave you guessing about the setup. CDE runs on opportunity records you already keep. They come in from your CRM, or from a spreadsheet export if you would rather start there and connect properly later. Nothing here asks you to collect new data. It asks you to populate the referrer field.
Run the five-customer audit
You do not need us for this one. Take five accounts, two healthy, two struggling and one you are unsure about, then map which partners touched each of them and when. The template I use is free and ungated:
If you would rather have it computed continuously, per partner, medians included, updating as deals close, that is what we built Entwine for. The free workspace monitors five relationships and takes no card:
https://app.entwineapp.io/Landing/Index?intent=starter#signup
This is part 1 of a series on the three ecosystem metrics — CDE, CSI (Customer Success Index) and ECS (Ecosystem Completeness Score) — and the four depths of partnership they measure.