When a member ignores a notice, the easy assumption is that they don't care. The behavioral evidence says otherwise: most non-response is friction, not apathy. Reduce the friction and the same person acts.
The levers that move response
Four levers do most of the work. Timing: a reminder that arrives a few days before a deadline beats one that arrives weeks ahead and is forgotten. Channel: a text that links straight to the action outperforms a letter that asks someone to log in somewhere. Messenger: a trusted local sender beats an anonymous government header. And the single-action rule: every message should ask for exactly one thing, stated in the first line.
Stacking these isn't theoretical. Benefit programs that have applied timed, plain-language, single-action reminders have seen meaningful lifts in completion — the difference between a member keeping coverage and losing it.
The cost of getting it wrong
Under work requirements, every percentage point of non-response converts into procedural disenrollments. Reminder design isn't a nicety; at population scale it is one of the highest-return decisions a plan or agency will make this year.