n8n WhatsApp Business Auto-Reply Router FAQ & Catalog

Automatically route WhatsApp questions to the right reply—hours, catalog/prices, or location

The n8n WhatsApp Business Auto-Reply Router FAQ & Catalog workflow listens to incoming messages on WhatsApp Business Cloud API, detects what your customer is asking about, and sends the correct predefined answer instantly—opening hours, catalog/prices, location, or a helpful fallback question.

What this workflow does

Built for fast WhatsApp FAQ handling, this automation works end-to-end inside n8n:

• Receives WhatsApp messages via the WhatsApp Business Cloud API trigger.
• Reads the incoming text and extracts the sender’s phone number.
• Classifies the request using keyword matching into one of four topics: horario (opening hours), catalogo (catalog/prices), ubicacion (location), or otro (anything else).
• Routes to the matching reply path using an n8n switch-based routing approach.
• Replies with your predefined message for:
  • horario: sends your opening hours
  • catalogo: sends your catalog/prices or a link
  • ubicacion: sends your address or a Google Maps link
  • otro: sends a general message asking what the user needs

Use cases

• A customer asks “What time do you open?” — you reply with opening hours automatically.
• A user requests “prices” or “catalog” — you send catalog/pricing information or a link.
• Someone asks “Where are you located?” — you respond with your address or a Google Maps link.
• Unrecognized questions — you follow up with a friendly “how can we help?” message.

Technical details

• WhatsApp Business Cloud API trigger for incoming messages
• Code node for text handling and classification support
• Switch node to route between horario / catalogo / ubicacion / otro
• WhatsApp send-message steps to deliver the predefined replies

Setup highlights: connect your WhatsApp Business Cloud API credential in n8n, configure your Meta webhook URL using the workflow’s trigger webhook, enable message updates, replace REEMPLAZA_CON_TU_PHONE_NUMBER_ID, and customize the response texts.