Help with WhatsApp + OpenAI + Google Sheets workflow (audio processing & sending images)

[Erick_no]

Hi community,
I’m building a workflow in n8n for customer support via WhatsApp (Cloud API), using OpenAI and Google Sheets as a product catalog. I understand the overall setup, but I’m stuck on two key points:

1. How to process audio messages from WhatsApp

2. How to send product images back to the user

   If anyone has a simple snippet or workflow showing audio → transcription → reply and how to send an image through WhatsApp Cloud API, that would be extremely helpful.

   Thanks!

[Erick_no]

[Erick_no]

[Wouter_Nigrini]

Hi @Erick_no

Please see below example for downloading and transcribing audio VNs from whatsapp as well as replying with a media image.