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Retail

D2C Consumer Brand

Connected Zoho CRM to WhatsApp with custom Deluge functions, turning the sales team's most-used channel into a tracked, automated part of the pipeline instead of a blind spot.

71%

faster first response time on WhatsApp leads

0

conversations lost to personal phones

8 weeks

end-to-end engagement

The Challenge

Reps were closing most of their deal conversations on personal and shared WhatsApp numbers, completely outside Zoho CRM. Leads went cold overnight because no one owned follow-up, message history lived on individual phones instead of the deal record, and managers had no visibility into what was actually said to a customer before a sale closed or a deal was lost.

Zoho Products Used

Zoho CRMDeluge custom functionsWhatsApp Business API

The Solution

Integrated WhatsApp Business API with Zoho CRM using custom Deluge functions, so every inbound and outbound message logs automatically against the matching Lead or Deal record. Built custom functions to auto-create leads from new WhatsApp conversations, route messages to the right rep based on territory rules, and trigger stage-based WhatsApp templates — quote sent, payment reminder, delivery update — directly from CRM workflow automation. Added a fallback function that flags any conversation with no rep reply within a set window so nothing goes cold silently.

How We Delivered It

Total engagement: 8 weeks

  1. 1

    Phase 1

    1 week

    Channel audit and number strategy

    Mapped which numbers reps were actually using, how many conversations were live outside CRM, and what moving to a single WhatsApp Business number would mean for customers mid-conversation.

    What came out of it

    • Inventory of active rep numbers and conversation volume
    • Migration plan for customers already talking to a personal number
  2. 2

    Phase 2

    2 weeks

    WhatsApp Business API onboarding

    Handled business verification, number provisioning, and the message-template approvals — the step that quietly sets the timeline on every WhatsApp project, so it was started first.

    What came out of it

    • Verified WhatsApp Business account and number
    • Approved templates for quote, payment reminder, and delivery update
  3. 3

    Phase 3

    3 weeks

    Deluge integration build

    Built the custom functions that log every inbound and outbound message against the matching Lead or Deal, auto-create leads from unknown numbers, and route conversations to the right rep by territory.

    What came out of it

    • Bi-directional message logging on CRM records
    • Auto-lead creation with duplicate matching on phone number
    • Territory-based conversation routing
  4. 4

    Phase 4

    1 week

    Stage-triggered templates and SLA guard

    Wired CRM stage changes to the approved templates, then added the fallback function that flags any conversation without a rep reply inside the agreed window.

    What came out of it

    • Stage-based template automation
    • Unanswered-conversation alerting to rep and manager
  5. 5

    Phase 5

    1 week

    Rollout, training, and tuning

    Moved reps onto the shared number in waves, watched the first weeks of real traffic, and tuned routing and alert windows against what the data showed rather than what was assumed at design time.

    What came out of it

    • Phased rep migration
    • Response-time baseline and tuned alert thresholds

Before and After

Before

  • Deal conversations lived on reps' personal phones.

    Every message logs against the Lead or Deal automatically.

  • Inbound WhatsApp leads waited for someone to notice them.

    New conversations create a lead and route by territory instantly.

  • A silent conversation was invisible until the deal was lost.

    No reply inside the window raises a flag to rep and manager.

Business Results

  • Every WhatsApp conversation logged against the correct CRM record automatically
  • 71% faster first response time on inbound WhatsApp leads
  • Zero conversations lost to personal phones after rollout
  • Managers get full message-history visibility on every deal, without asking reps to forward chats

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