How to Onboard an SDR in 30 Days (Multichannel-First)

A 30-day SDR onboarding plan only works in 2026 when email, LinkedIn, and call are trained in parallel from day 1, where the multichannel-first ramp compresses time to full productivity from 4.5 months down to 3.2 and cuts year-one churn by roughly 35 percent.