ChatGPT WhatsApp Integration
OpenAI’s shared ChatGPT number is a consumer chat, not a business connector. Whatsable puts OpenAI on your own WhatsApp Business number: built-in AI chatbots, or a bring-your-own OpenAI Zap that you control.
OpenAI shut ChatGPT on WhatsApp down worldwide in January 2026. It returned in the European Economic Area in July 2026 and remains unavailable everywhere else.
This page explains how WhatsAble uses OpenAI for WhatsApp Business. It is not an OpenAI Marketplace or Integrations-hub connector card.
Two different WhatsApp numbers. Only one is yours.
People searching “ChatGPT WhatsApp integration” usually mix OpenAI’s shared 1-800-CHATGPT contact with a business that wants ChatGPT-class replies on its own line. Those are not the same product.
OpenAI’s shared ChatGPT number
This is OpenAI’s number. It was switched off globally, then restored only in the EEA. It is not your brand, and OpenAI can change it again.
- EEA users can message verified 1-800-CHATGPT at +1-800-242-8478 without a ChatGPT account.
- Availability follows the country code on the WhatsApp number, may roll out gradually, and usage limits apply.
- Outside the EEA the same ChatGPT-on-WhatsApp contact stays unavailable.
- OpenAI has not shipped a WhatsApp connector, app, or Custom GPT channel for your business number.
Your business number, with OpenAI in the middle
Whatsable connects your WhatsApp Business number through Meta Embedded Signup. OpenAI answers. You send. The number stays yours, including in the WhatsApp Business app.
- Customers write your line, not 1-800-CHATGPT.
- Meta WhatsApp Coexistence keeps the WhatsApp Business app on the same number.
- Whatsable is an official Meta Tech Provider.
- A policy change can still hit Cloud API messaging. Your own number is not a shared consumer contact that one vendor can retire for everyone.
A ready OpenAI bot, or a Zapier build you control
Keep these separate. One is Whatsable’s product. The other is your Zap calling OpenAI. Whatsable does not make that OpenAI call.
Whatsable AI Chatbots
Whatsable AI Chatbots are WhatsApp assistants powered by OpenAI. You name the agent, write a business mission, add a knowledge base, and set handoff rules. The model name is unpublished, so we do not print one.
- Lives on Pro and Agency. Not on Bulk Message or lower plans.
- Replies send from your connected WhatsApp Business number.
- Handoff keywords and a delay window keep the bot from sounding like a firehose.
Bring your own OpenAI via Zapier
Zapier makes the OpenAI call. Whatsable only sees WhatsApp. In Zapier the app is WhatsAble. The trigger is New Incoming or Outgoing WhatsApp Message. You pass conversation context into OpenAI, then send the model’s reply with Send WhatsApp Message.
- Map conversation_paragraph and note into the OpenAI prompt. last_messages and last_message_of_user are there when you want a tighter window.
- Filter incoming_message = true if you only want customer texts, not your own outbound events.
- This is not a Whatsable–OpenAI native integration. Zapier sits in the middle next to OpenAI.
- Zapier, Make, n8n, REST API, webhooks, Agent Skills, and AI chatbots are Pro and Agency only. Not on Bulk Message or lower plans.
What the built-in AI chatbot setup actually looks like
Three screens from the AI chatbot builder on Pro and Agency. No OpenAI account, no model picker. You set the behavior, Whatsable runs it on your number.



WhatsApp automation on your own number
Every feature below runs on the WhatsApp Business number you connect. Your brand, your inbox.
OpenAI-powered chatbot on your own number
Build a 24/7 AI assistant that answers from your brand and your content. Set a business mission, add a knowledge base, and the bot replies from your WhatsApp Business line, not a shared ChatGPT contact.
Knowledge base trained to your business
Upload PDFs, CSV, DOCX, or plain text files. Set tone, a reply delay, and trigger keywords. The chatbot stays inside what you trained it on.
Bot-to-human handoff
Set keywords that pause the bot and route the conversation to a human agent. The team inbox shows who owns each open conversation.
Bring your own OpenAI via Zapier or Make
Trigger on any incoming WhatsApp message, call OpenAI yourself through Zapier or Make, and send the model reply with Send WhatsApp Message. You own the prompt and the API call.
Bulk messages to opted-in contacts
Send approved templates to your opted-in contact lists with paced delivery. Use automations to follow up if a contact does not reply within your chosen window.
Keep the WhatsApp Business app
Meta WhatsApp Coexistence lets automations and the WhatsApp Business app run on the same number. Your team keeps the phone app. Whatsable is an official Meta Tech Provider.
Before you build
A few things worth knowing before choosing a path.
- OpenAI’s 1-800-CHATGPT is a shared consumer number, not a business connector. It is currently available only in the EEA (returned July 2026) and is unavailable everywhere else.
- Whatsable is an official Meta Tech Provider. WhatsApp Business accounts connect through Meta Embedded Signup.
- AI chatbots, Zapier, Make, n8n, REST API, webhooks, and Agent Skills require Pro or Agency. Bulk Messages require the Bulk Message, Pro, or Agency plan. Not on Bulk Message or lower plans.
- Meta WhatsApp Coexistence is supported. The WhatsApp Business app stays active on the same number.
- OpenAI has not published a WhatsApp connector, app, or Custom GPT channel. Every working build routes a webhook to your server, calls the Responses API, and sends from your number.
Connect your number, then choose the OpenAI path
- 1Connect your WhatsApp Business number in Whatsable with Meta Embedded Signup. Keep the WhatsApp Business app. Coexistence is supported.
- 2For a ready bot, open AI Chatbots on Pro or Agency. Set the agent name, business mission, and knowledge base. See the AI Chatbot docs for full setup steps.
- 3For bring-your-own OpenAI, create a Zap on the WhatsAble app with New Incoming or Outgoing WhatsApp Message, call OpenAI yourself, and send with Send WhatsApp Message.
- 4Use digits-only phone numbers. Inside the 24-hour window send text. Outside it, send a template.
OpenAI is the middle box. Nothing native sits between WhatsApp and ChatGPT.
The OpenAI API is request and response only. It cannot receive a WhatsApp webhook or dial WhatsApp. Every working setup is the same three hops.
- 1
WhatsApp webhook or automation trigger
An inbound message on your business number fires Whatsable, Zapier, Make, n8n, or your own HTTPS hook.
- 2Middle box
OpenAI Responses API
Your code or Zapier calls OpenAI. Function calling returns JSON. You execute it. OpenAI does not talk to WhatsApp.
- 3
WhatsApp send
Whatsable sends the reply from your number. Inside the 24-hour window that can be free text. Outside it, send a template.
There is no native ChatGPT WhatsApp connector. OpenAI stays in the middle.
OpenAI never answers WhatsApp by itself
This is the part OpenAI’s marketing pages skip, and why a Custom GPT or a webhook toggle is not a ChatGPT WhatsApp integration.
Request and response only
The OpenAI API waits for you to call it. It cannot receive a WhatsApp webhook and it cannot place a WhatsApp message. Function calling describes a tool call in JSON. Your code runs it.
OpenAI Webhooks are the other direction
OpenAI Webhooks notify you about OpenAI jobs such as a completed response or a finished batch. They cannot ingest an inbound WhatsApp message.
Custom GPT Actions stay inside a human turn
A Custom GPT Action runs outbound during a chat a person already started in ChatGPT. An inbound WhatsApp message cannot wake a GPT.
WhatsApp rules do not disappear because OpenAI is in the stack
A working ChatGPT WhatsApp integration still fails in the usual Cloud API places. Fix these before you blame the model.
24-hour window, error 131047
Free-form replies only work after the contact messaged you, and only for 24 hours. When the window is closed, Meta returns 131047. Send an approved template, or wait for them to write again.
US marketing templates, error 131049
Since 1 April 2025, Meta does not deliver marketing templates to US numbers. Utility and authentication templates still go through. Have the US lead write first, then reply inside the window.
Phone field is digits only
Send the number as digits only. No plus sign, no spaces. A formatted E.164 string in Zapier is a common silent miss.
Plan gates
Automations, the REST API, webhooks, Agent Skills, and AI chatbots sit on Pro and Agency. Not on Bulk Message or lower plans.
Primary pages this copy is built on
- OpenAI: calling and messaging ChatGPT with your phone
- OpenAI: ChatGPT WhatsApp transition
- OpenAI: function calling (you execute the JSON)
- OpenAI: webhooks are outbound job events
- Whatsable AI Chatbots overview
- Whatsable AI Chatbot configuration
- Whatsable Zapier overview
- Whatsable Embedded Signup and coexistence
- Meta WhatsApp error codes (131047)
- Meta marketing messages (US 131049 date)
- Whatsable: WhatsApp error 131049
More integration deep dives
ChatGPT and WhatsApp, answered
No. OpenAI has not shipped a WhatsApp connector, app, or Custom GPT channel. A real build is WhatsApp webhook or automation trigger, then the OpenAI Responses API, then a WhatsApp send. OpenAI is the middle box.
OpenAI shut ChatGPT on WhatsApp down worldwide in January 2026. It returned in the European Economic Area in July 2026 and remains unavailable everywhere else. EEA users can message verified 1-800-CHATGPT at +1-800-242-8478 without an account. Availability depends on the WhatsApp number’s country code, may roll out gradually, and limits apply.
Whatsable AI Chatbots are powered by OpenAI. For configuration details and setup, see the AI Chatbot overview in the docs.
Whatsable documents the bots as powered by OpenAI. The model name is unpublished, so we do not name one here.
Yes. Whatsable supports Meta WhatsApp Coexistence. You connect your own number through Meta Embedded Signup and keep chatting from the WhatsApp Business app. Whatsable is an official Meta Tech Provider. That does not make the number immune to every Meta or WhatsApp policy change.
Check three things first. OpenAI cannot receive a WhatsApp webhook directly, so your server needs to receive the webhook and call OpenAI. Replies only work inside Meta’s 24-hour reply window. Phone numbers must be digits only, with no plus sign or spaces.
AI chatbots, Zapier, Make, n8n, Agent Skills, and the REST API are available on Pro and Agency. Bulk Messages require the Bulk Message, Pro, or Agency plan. Pro and Agency unlock all of the above.
Put OpenAI on your WhatsApp Business number
Your number, Meta Embedded Signup, coexistence, and OpenAI in the middle. Built-in bots or a Zap you own.
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