Case study snapshot
- Client type: a business whose sales and support teams talk to customers on WhatsApp throughout the day
- Service: custom WhatsApp Business API to HubSpot sync
- Stack: WhatsApp Business API, Meta, HubSpot CRM
- Headline results: 8,000+ messages and media files synced every month, 20+ admin hours saved every week, 35% faster response times
The problem
Customers were messaging the team on WhatsApp, but those conversations lived on individual phones. Context stayed with one person, handoffs started from zero, follow-ups slipped through the cracks and HubSpot reports missed WhatsApp activity. Copying messages and screenshots into the CRM was tedious and nobody could keep it up consistently.
What we built
We connected the client's WhatsApp Business API to HubSpot through Meta and built a system that captures messages and media as they arrive:
- Message and media capture: every incoming message and media file is received in real time through the WhatsApp Business API.
- Structured activity logging: each conversation is converted into a structured communication activity, matched to the right contact by phone number.
- Automated HubSpot sync: the activities, with photos, voice notes and files attached, are logged on the contact timeline so teams get clean reporting.
Problems we designed for
We handled the details that usually break WhatsApp syncs: phone numbers stored in different formats, duplicate contacts, unknown senders (a contact is created and tagged as a WhatsApp lead), missing media (files are downloaded straight away and stored in HubSpot), the wrong owner (each number or agent mapped to the right HubSpot owner) and silent failures (alerts and automatic retries).
Measured results
- 8,000+ WhatsApp messages and media files synced into HubSpot every month, fully automated
- 20+ administrative hours saved every week by removing manual CRM logging
- 40% better reporting accuracy from structured communication activity tracking
- 35% faster response times with full conversation visibility across sales and support
Read more
Our guide How to Automatically Log WhatsApp Business Conversations in HubSpot walks through the three integration options and the mistakes to avoid.

