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Slowing growth reads as a marketing problem, so marketing budget goes up. In subscription businesses, growth is net of churn, and a small retention problem quietly consumes a large acquisition effort.
Short answer: SaaS growth slows when churn rises or expansion flattens rather than acquisition falling. Separate new, churned and expansion revenue with a quick review of the numbers before spending more on marketing, because the cause is normally obvious once the terms are distinguished and often contradicts the assumption in place.
New revenue minus churned revenue plus expansion. If churn is rising, acquisition has to accelerate merely to stand still, and every extra pound of marketing buys less than the last.
Working out which of the three terms actually changed is a matter of an afternoon with the numbers, and it usually contradicts the assumption the team is operating on.
Revenue from existing customers costs no acquisition, converts far faster and signals product value. Businesses with strong expansion can grow while acquiring nothing new.
It is also the most commonly neglected, because it belongs to nobody — it is neither marketing's target nor support's job.
This question routes to Growth Strategy — one of 29 engagements the platform runs. It does not produce advice in general; it produces this analysis for your business:
✓ Sizes all four growth levers against your numbers, not general benchmarks
✓ Identifies which are blocked and by what — capacity, cash, market or positioning
✓ Sequences them so the first move funds the second
✓ Shows the arithmetic from where you are to the target
✓ Names what has to be true, and the signals that it is not
✓ Ends with what to do this month
You watch the analysis get built before you pay anything. Read a complete report here if you would rather see the depth first.
Usually churn rising or expansion flattening rather than acquisition falling. Decompose net growth into new, churned and expansion revenue before spending anything — the answer is normally obvious once separated.
It depends heavily on price point and customer size — small-business software churns far more than enterprise. Your own trend and the difference between segments are more useful than any benchmark.
Only once you know acquisition is the constraint. Spending into a retention problem increases the flow through a leaking bucket and makes the unit economics worse, not better.
Describe the situation in your own words and we will tell you which analysis answers it — before you sign up for anything.
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