R5 — Ignore portal retention-lift marketing entirely; verify efficiency claims against the actual SMB inbox

Rule: Disregard vendor "portal users retain better" / "95% client adoption" / "huge win" testimonials. Verify efficiency claims against the actual SMB inbox.

Why: "Portal users retain better" is a textbook selection effect — engaged clients both use portals AND retain; the portal does not cause the retention — engaged clients both use portals AND retain; portals do not cause retention. Independent academic work could not establish causation. The Forrester TEI deflection studies (Forrester TEI studies report ~35% support-ticket deflection from portals — but every TEI study is commissioned and paid for by the vendor whose product is studied; enterprise-scale) are vendor-commissioned and enterprise-scale. The efficiency case is real if and only if the SMB currently fields a steady stream of repetitive messages — pair with R3 — Three-trigger test: only proceed with a portal when interactions are FREQUENT + DOCUMENT/APPROVAL-HEAVY + the deflected back-and-forth is REAL AND MEASURABLE trigger #3.

How to apply:

• In any client conversation where retention-lift is the lead argument for a portal, redirect to the three-trigger test.
• Verify the deflectable volume against an actual 2-week inbox sample before quoting.
• Mirror calculator brief's R5 — Disregard vendor-sourced "interactive content converts better" statistics in client conversations and data brief's R7 — Test defensibility with one question: would your competitor's version of this look exactly like yours? If yes, it's a commodity — same vendor-skepticism muscle.