The Best Interface Was One I Didn't Build: WhatsApp on a Construction Site

Description and use

Deploying WhatsApp as the interface for photo submissions on a construction site eliminated the need to build and maintain a separate portal, reducing user provisioning and training costs while preserving structured data flow for financial verification.

Problem

Field workers needed to submit photo evidence for contractor disbursements, but building a dedicated portal would incur high account creation, training, and maintenance costs.

Outcome

Using WhatsApp for evidence submission eliminated account provisioning costs, improved adoption, and maintained structured data flow for financial verification.

Workflow

• 1. Field worker opens WhatsApp and initiates the AutoKon bot. 2. Bot asks for unit, stage, and photo one at a time. 3. Bot validates each input, rejecting incomplete submissions. 4. Structured data is sent to AutoKon platform. 5. Vision pipeline grades evidence. 6. Five-role approval workflow receives the submission. 7. Approvers receive guided chat with photo and decision prompt. 8. Decision is recorded and disbursement processed.

Evidence

AutoKon verifies construction progress with photo evidence and uses that evidence to gate contractor disbursements across thousands of housing units.

Source

I did not build them a portal. They submit over WhatsApp.

Source

Field submissions come in through a WhatsApp-first flow built on n8n and Botpress.

Source

The conversation collects what the record needs (which unit, which stage, the photo) and hands a structured submission to the platform.

Source

Approvers work through guided chat too. Someone with four items to approve does not open a dashboard, find the queue and filter it.

Source