When email is the right channel
Who should use email for review requests
Email is the right primary channel for businesses where professional communication is the norm: law firms, accountants, financial advisors, medical practices, B2B service companies, and similar professional services. In these contexts customers expect formal written communication and a WhatsApp message from their accountant or lawyer would feel out of place.
Email is also the right channel for customers who do not share a phone number. Many e-commerce customers, online service customers, and business buyers interact primarily by email. For these customer segments email is the only digital outreach channel available.
The main limitation of email for review requests is the response rate. At 12 percent average, email converts at roughly a quarter of the rate of WhatsApp. For most consumer businesses in markets where WhatsApp or SMS are common, email should be a secondary channel rather than the primary one. For professional services and B2B, email remains the standard.