A business/psychobabble jargon alternative to "tell oneself". Best used by people who want to fool others into thinking they are
a. Extraordinarily efficient and professional
b. Entirely empathetic and non-judgemental
"I think Bill needs to self-message that his turning up drunk to the weekly efficiency meetings is entirely inappropriate"
"I think you need to self-message that selling your children into slavery is not a viable solution to your financial issues involving access to crack"