How to Detect and Act on Expansion Intent Signals Across Teams

At my previous company, I suspected that expansion intent was visible in product behavior -- spikes in usage, limits getting hit, admins being added -- but those signals rarely reached sales or CS individuals in time to act. The signals were so fractured, so product, sales, CS, all saw little blips, but no coherent narrative. Curious -- Is this observation correct? How do folks handle this today?