Word of mouth is the spread of a product through recommendations from people who use it. In B2B SaaS, it happens in private conversations, Slack and community groups, social media, review sites, and when people move jobs and bring tools with them. It is often one of the most trusted sources for buyers, and one of the hardest for companies to attribute.
Why it is hard to measure
Most recommendations happen in places analytics cannot see: direct messages, calls, private communities and in-person conversations. A buyer who hears about a product from a colleague may later search for its name, so the visit shows up as branded organic search or direct traffic, not as a referral.
- Ask “How did you hear about us?” as an open text field on sign-up or demo forms.
- Watch branded search impressions and direct sign-ups over time.
- Track referral program usage where one exists.
- Record mentions in communities and on social platforms.
What drives it
People recommend products that solve a problem well and that make them look good for suggesting them. Fast time to value, a memorable experience, good support and features that involve other people, such as sharing and collaboration, all make recommendations more likely. Marketing can make it easier, with shareable content and referral incentives, but rarely creates it on its own.
Word of mouth and search
Word of mouth often turns into search. People search for the product name, for reviews, or for comparisons with what they use now. Making sure branded queries, reviews and comparison searches lead to accurate, helpful pages means the recommendation is not lost at that step. Discussions in public communities and on review sites may also be read by AI assistants when they summarize products, though how much each source influences answers is not documented.
Example
Capturing the self-reported source
Hypothetical company Hartsfield Ops adds an optional open field asking where people heard about it. Analytics credited most sign-ups to organic search and direct traffic, but many answers mention a colleague, a podcast or a community. The team starts a customer story program and makes sure its branded and comparison pages are thorough.
Common mistakes
Assuming branded search is a channel
Branded searches usually mean someone heard about you elsewhere. Look for the source behind them.
Questions
Referral incentives can encourage it, but any paid or incentivized recommendation usually needs to be disclosed under advertising rules in many countries.
