How to promote new courses to alumni via WhatsApp

If you run a language academy, this probably happens to you: when you open enrollment for a new course, you get 50 inquiries on the same day and you can't keep up with replies. And the one you take two days to respond to has already signed up at another academy. But there's a group many overlook: former students. They already know you, they already trust you, and they just need a little nudge to come back.

The problem: former students go cold

When someone finishes a level or stops coming, it's not that they don't want to continue: it's that they lose motivation. If no one writes to them, they forget. And then, when you want to fill a new course, you have to go out and find new people, which is much more expensive and slower. What you need is a simple way to reactivate those who were already students, without it taking hours.

The solution: a WhatsApp campaign in 5 steps

WhatsApp is the most direct channel you have with your former students. But sending messages one by one is unfeasible. The key is to set up a campaign with templates (WhatsApp's pre-approved messages) and segment your contacts. That way, in 30 minutes, you have the message ready to reach everyone.

1. 1Put together a list of former students: gather the contacts who already attended your academy, with their name and the level they took. If you use a Google Sheets spreadsheet, you can import it directly.
2. 2Write the hook message: something short and personal. For example: 'Hello [Name]! 👋 Enrollment is now open for the intermediate English course. Since you've studied with us before, you get 25% off this month. Interested?'
3. 3Upload the template to WhatsApp Business: if you use the WhatsApp API, templates are approved within up to 48 hours. So prepare it in advance, before opening enrollment.
4. 4Segment your contacts: don't send the same thing to a beginner-level student as to an advanced one. Group them by level or interest, and adapt the message.
5. 5Send the campaign and follow up on the conversation: when someone replies, respond quickly. If you use a tool with AI, it will suggest responses, but always with a human approving them.

How a tool like Wando makes it easier

Doing all this manually is possible, but it takes time. A tool like Wando (wando.online) gives you an inbox with AI suggestions that learn from your real responses, campaign templates, and contacts with tags for segmentation. Plus, you get statistics to see how many opened and replied. But keep in mind: Wando is not a robot that replies on its own by default; the AI suggests and you approve with a click. That way you maintain control and the human touch.

Common mistakes when promoting on WhatsApp

• Not segmenting: sending the same message to everyone, regardless of level or interest, makes many ignore it.
• Writing too long: the message must be short, clear, and with a single call to action.
• Not following up: if someone asks and you don't reply within the day, they go cold. Have a process to respond quickly.
• Forgetting about templates: if you use the WhatsApp API, templates are approved within up to 48 hours. Prepare them in advance so you don't stall your campaign.

The three cases that go off the happy path

The former student doesn't always reply with a 'yes, I'm interested'. Sometimes this happens: they ask for more info, tell you to call them later, or simply don't reply. Each case has its move.

If they ask for more info, don't send them a long message. Reply with just the essentials: price, schedules, start date, and a link to enrollment. If you use Wando, the AI suggests the reply and you approve it with a click.

If they say 'message me next week', note it in your contacts with a follow-up label. Don't lose them. The following week, a short message: 'Are you still interested in the course?'. That's enough.

If they don't reply, don't insist after two hours. Wait a few days and send a different message, not the same one. For example, change the hook: from 'you have 25% off' to 'there are 3 spots left for the Tuesday group'. Urgency works differently.

How to measure if management improved

It's not enough to send the campaign and wait. You have to measure to know if it worked. The three metrics that matter: response rate, conversion rate, and response time.

The response rate is how many replied to your message out of the total sent. If you sent 100 and 30 replied, you have 30%. Less than 20% indicates that the message doesn't engage.

The conversion rate is how many signed up out of those who replied. If 30 replied and 10 signed up, you have 33%. That tells you if your offer closes.

Response time is key: if you take more than 24 hours to reply, you lose most. With Wando, the statistics show you these metrics per campaign, so you know what to adjust.

What to do when the customer doesn't reply

Silence doesn't mean they're not interested. Sometimes people read and forget, or don't know what to reply. That's why the first message should include a clear call to action: 'Are you signing up?' or 'Should I send you the registration link?'.

If they don't reply within 48 hours, send a second message, but different. Don't repeat the same text. Change the angle: 'I'm writing because the Thursday group is almost full, do you want me to reserve a spot for you?'.

If he doesn't respond to the second one either, stop. Don't send more. The last thing you want is to get blocked. Leave him in your contact list with the 'cold' label and try again in the next course, with a different message.

The key is not to take it personally. People are busy. With a good follow-up process, you recover many who seemed lost.

How it was done before and why that failed

Before, promotion to former students was chaos. Messages were sent one by one from a personal cell phone, or flyers were printed, or posts were made on social media hoping someone would see them. All of that has the same problem: it's not systematic.

Sending messages one by one is unsustainable when you have more than 50 contacts. You lose the whole day and also forget who already replied. Flyers depend on luck. Social media, on the algorithm.

WhatsApp Business without API is also not enough: you can't tag contacts, send mass campaigns with templates, or measure results. Doing it that way is like fishing with a rod in the ocean.

The modern alternative is a tool with the official WhatsApp API, which lets you segment, send campaigns, and measure. It's not magic: it's order. And order shows in the number of enrollments.

What NOT to automate in this management

Automating everything is tempting, but there are things you shouldn't. First: price negotiations. If an alumni asks for a special discount, that has to be resolved by a human. AI can suggest, but the final decision is yours.

Nor should you automate responses to complex questions like 'Will the course be useful if I already have a B2 level?' There you need to understand the context and give a personal answer. A bot that answers anything will make you look bad.

And especially complaints. If someone is upset about a billing or scheduling issue, AI won't calm them down. That requires human empathy. Automating that is a recipe for losing a customer.

The general rule: automate the repetitive (greetings, basic info, follow-ups) and leave what requires judgment to human hands. Wando is designed that way: AI suggests, you approve.