RM full form and meaning
In banking, insurance and financial services, RM stands for Relationship Manager. An RM is the named person a set of customers belongs to. The portfolio may be built by value, by geography, by branch or by segment, and the RM is expected to know it: who holds what, what is coming up for renewal, who is likely to need something next, and who is unhappy.
The title also appears outside finance, in B2B companies and in agencies, where it usually describes the same arrangement: one person owning a continuing relationship rather than a single transaction. Wherever it appears, the defining feature is that the same person sells and then stays.