WhatsApp right inside the panel
WhatsApp is the main channel to reach customers, so it is native in Painel Blend. You connect your number through an Evolution API or BotBot instance and start sending messages without leaving the panel: access details in one click from the customer list, notices and payment reminders.
Automations handle the repetitive work:
- Welcome messages for newly created customers;
- Expiration reminders before a subscription ends, with a link to the Pix renewal page;
- Reactivation messages for those who already expired.
On the WhatsApp screen you follow scheduled, sent and failed messages, so you know exactly what went out to each customer. More ideas in WhatsApp automations against late payments.
E-mail and alerts for your network
Besides WhatsApp, the panel sends e-mail notifications for important situations such as a low credit balance and subscriptions close to expiring. You and your resellers hear about it before it becomes a problem.
REST API and webhooks to connect everything
If you want to go further, there is a documented REST API. Under Settings > API and webhooks you generate a personal token and can read and operate customers, resellers and credits from your own system.
Outgoing webhooks notify your system when something happens in the panel. Available events:
customer.created,customer.updated,customer.renewed,customer.deletedreseller.createdcredits.received
Each delivery is signed with HMAC-SHA256 in the x-blend-signature header, so you can confirm the event really came from your panel. If the destination fails, the panel retries with backoff, and the delivery log shows every attempt with a manual resend option.
Verifying a webhook
On your side, validation is simple: compute the HMAC-SHA256 of the raw request body with your webhook secret and compare it with the x-blend-signature header. If they match, process the event; if not, discard it. That protects your integration against forged calls.
Telegram, e-mail or any system
With webhooks, you pick the channel. A customer.renewed event can trigger a thank-you from a Telegram bot, a transactional e-mail with a receipt, or a flow in your automation tool. A credits.received event can notify the reseller in a group chat. No closed features to depend on.
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