This template receives a WhatsApp Business Cloud inbound message on a Latenode webhook, loads your Google Docs knowledge base, and asks ChatGPT for a reply.
WhatsApp Business Cloud sends that reply, or an approved template when Meta requires one. Google Sheets stores the thread. Connect Google Docs, Google Sheets, and WhatsApp Business Cloud. ChatGPT is a Latenode AI step. Put the Cloud API token on the WhatsApp Business Cloud connection.
Latenode bills workflow runtime in CPU seconds. The first 10,000 CPU seconds are free each month, then usage follows pay-as-you-go CPU-second pricing. Plug-and-Play (PnP) AI nodes are billed separately—each PnP token is $1 USD, charged pay-as-you-go at vendor cost plus a small processing fee, with no API keys required.
Full pricing — how CPU seconds work →Workflow preview
A webhook starts the scenario when WhatsApp Business Cloud posts a new inbound message.
Google Docs reads the knowledge document. JavaScript combines that text with the customer message.
ChatGPT returns an answer grounded in the Doc. You do not paste an OpenAI key.
WhatsApp Business Cloud sends the reply, or an approved template when the care window is closed. Google Sheets appends user, message, reply, and time.
Add a webhook trigger and paste its URL into Meta as the WhatsApp Business Cloud callback for inbound messages.
Add Google Docs and Google Sheets connections. Point Docs at the knowledge document. Use a Sheet with columns for user, message, reply, and time.
Add a WhatsApp Business Cloud connection and put the Cloud API token there. Approve a reopen template in Meta Business Manager for threads outside the care window.
Load the Doc, build the prompt in JavaScript, then send it to ChatGPT. Map the answer onto Send Message. Use Send Template Message when Meta requires a template. Log the row in Sheets. Send a test inbound message and confirm the reply.
FAQ
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