WhatsApp Marketing with ChatGPT
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“WhatsApp marketing with ChatGPT” means one specific thing: an assistant based on a language model, trained on your business content, that answers customers in chat the way a person who knows the price list by heart would. It isn’t ChatGPT open in another window: it’s AI inside your WhatsApp number, your website and your Instagram, working on your information and handing over when a question leaves its field.

What AI does on WhatsApp, in practice
- Answers open questions. “Do you make gluten-free cakes for Saturday?”, “is the XL model available in blue?”: questions no keyword anticipates, answered from your content.
- In the customer’s language, even if your content is in English only.
- Around the clock, with no away message: at 10:40 pm the customer gets information, not “we’ll reply tomorrow”.
- Qualifies and collects: asks for name, need and date, and saves them to the contact card.
- Hands over to a human when needed: at the customer’s request, on sensitive words (complaint, refund) or when it can’t find the answer. From there the conversation is yours, with the history.
- The same assistant on every channel: WhatsApp, Instagram, Messenger, Telegram, email, SMS and website widget, from a single inbox.
How you train it: the four sources
The assistant only knows what you give it. In SendApp Agent there are four sources, and they can be combined:
- URLs: one or more pages of your site (services, prices, FAQ, shipping).
- XML sitemap: the whole site at once, for those with many pages.
- PDFs: price lists, catalogues, menus, terms, technical sheets.
- Free text: the things written nowhere — “parking is free on Sundays”, “we don’t ship abroad”.
No OpenAI account, API key or usage meter is needed: AI is included in the plan.
The steps in SendApp Agent
- Connect the channel: WhatsApp via QR code in five minutes, or through the official Meta API.
- Create the assistant: name, tone (formal or informal), main language, what it can and cannot promise.
- Add the sources: URLs, sitemap, PDFs, text. The assistant reads them and builds its knowledge base.
- Test it in chat with your customers’ real questions, including the awkward ones.
- Correct the answers you don’t like: from then on the assistant uses the corrected version.
- Define the handover: keywords, hours, type of request. Then switch it on for the channel.
The step-by-step guide shows every screen. Everything the assistant does, with limits per plan, is on the artificial intelligence page.
What to leave to a human
A good setup doesn’t let AI answer everything. A person keeps prices off the list and discounts, complaints, negotiations, decisions with legal or financial consequences, and anything the customer asks to handle with a human. The assistant must not invent: when it doesn’t know, it says so and hands over. That’s why the source matters more than the model: up-to-date, complete content is worth more than any prompt.
Examples by industry
- Restaurant: menu PDF and opening hours as sources; the AI answers on allergens, bookings and closing days, and passes tables for more than eight people to whoever runs the room.
- E-commerce: shipping and returns pages, catalogue; the AI answers on delivery times, sizes and availability, and hands over for a return already opened.
- Professional practice: services page and a text with standard fees; the AI books the first appointment and leaves the quote to the professional.
- Gym: price list, classes and rules; the AI answers on hours and memberships and collects trial requests.
How much it costs
AI is included in SendApp Agent: AI accounts go from 1 to 30 depending on the plan, together with operators, contacts and messages. Plans start at €19 a month, with a 7-day trial and no card. Full pricing.
Frequently asked questions
Is it really ChatGPT?
It’s an assistant based on language models of the same family, trained on your content and built into the channels. You don’t need to open an OpenAI account or pay separate usage fees.
Can the AI get it wrong?
Yes, if the sources are incomplete or old. That’s why you test it in chat before switching it on, correct answers and keep sources up to date. On out-of-scope questions the assistant hands over instead of inventing.
Do I need the official WhatsApp API?
No: the assistant also works on a number linked via QR code. The official Meta API is for when you also want campaigns with approved templates and high volumes.
How is it different from keyword replies?
A keyword is a fixed rule: recognised text, same answer. AI understands the question even when it’s phrased in a new way. The two coexist: the automatic-messages guide explains when to use each.