B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
22%
22% -- follow up response rate for Post-email WhatsApp follow-ups (2026)
Post-email WhatsApp follow-ups generated a 22% response rate across 2,400 tested sequences.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
22%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
2,400
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
GTMStack
Primary
Tier B
https://gtmstack.app/blog/whatsapp-b2b-outbound-channel ↗
Source Article
WhatsApp as a B2B Outbound Channel: When It Works and When It Doesn't | GTMStack
WhatsApp as a B2B Outbound Channel: When It Works and When It Doesn't
WhatsApp is a powerful B2B outbound channel in Europe, LATAM, and APAC. Learn how to use the Business API, compliance rules, and real response rate data.
GTMStack Team
Table of Contents
The Channel Most B2B Teams Are Ignoring
Most…
Original Research
GTMStack
· Original study ↗
Methodology
Tracked across 2,400 sequences; WhatsApp follow-up 22% vs third email 4%
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Post-email WhatsApp follow-ups: 22% follow up response rate. Source: GTMStack (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/whatsapp-post-email-followup-response-rate
HTML Embed
<blockquote cite="https://lighthousedata.io/data/whatsapp-post-email-followup-response-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>22%</strong> -- follow up response rate for Post-email WhatsApp follow-ups<br><small>Source: GTMStack (2026) · <a href="https://lighthousedata.io/data/whatsapp-post-email-followup-response-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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