B2B AI Support Chatbot

A Johannesburg professional services firm was handling the same 20 client questions every week. The support team was spending four hours a day answering queries that required no human judgment. They needed the right answer, reliably, fast.

We started by auditing three weeks of support tickets: 340 queries. 73% fell into 12 repeating categories. Billing timelines. Contract renewal processes. Report delivery schedules. Escalation procedures. The remaining 27% was genuinely bespoke work that needed a person.

The tool we built handles those 12 categories automatically. It connects to their WhatsApp Business account, processes the query, pulls answers from a structured knowledge base, and responds. Under 3 minutes. Any time of day, including weekends.

Building the knowledge base was most of the work. We spent four weeks with three senior team members mapping every question type, edge case, and correct answer. The chatbot was trained on their specific policies and language, not on generic LLM knowledge. That distinction matters. Generic models hallucinate. Trained models answer correctly.

The routing logic was the second piece. Queries outside the 12 categories get flagged, categorised by urgency, and forwarded to the right team member with the query context already summarised in three lines. The team member reviews a brief, not a full conversation thread.

Integration took two weeks. WhatsApp Business API, their existing CRM, and a simple admin dashboard for the team to update the knowledge base without touching code. The system was live in 6 weeks from kickoff.

Results after 90 days: 70% of inbound volume handled automatically. Average response time under 3 minutes, down from 4 hours during business hours and unknown outside them. Zero escalations from chatbot errors in the first three months. The support team redirected from reactive answering to proactive client relationship work.

The build cost less than one month of a junior support team member's salary. The time saving compounds every month. 40+ hours a month freed. Month one, two, three, indefinitely.