Sending customers SMS notifications like "your order has been received," "your carpet has gone in for washing," or "it's out for delivery" is one of the most effective ways to build trust and transparency at a carpet cleaning business. But when it comes to campaign and reminder SMS, a legal framework kicks in in Turkey: İYS.
What is İYS?
İYS (Message Management System) is the official infrastructure that requires businesses wishing to send commercial electronic messages (SMS, email, calls) to obtain prior consent from the recipient and record that consent in a central system. Sending campaign SMS without consent is subject to legal penalties.
Which messages require İYS consent?
- Not required (transactional notifications): status updates directly tied to an order the customer placed, such as "your order has been received" or "your carpet is out for delivery."
- Required (commercial messages): marketing messages such as "20% off this month" or "special offer for new customers."
Getting this distinction right matters both to avoid legal risk and to avoid annoying customers with unnecessary messages.
Collecting consent from inside the app
A modern system can collect commercial-message consent directly inside the app when a customer profile is created or on their first order, and record that consent with İYS legally. This is far more practical and traceable than having customers fill out a separate paper form.
Sender identity for multi-branch operations
For businesses with multiple branches or franchises, it matters that each company can use its own SMS sender title (identity) — that way the customer clearly knows which branch sent the message, and brand consistency is maintained.
Practical recommendations
- Keep order-status notifications on by default — they directly improve the customer experience.
- Check İYS consent status before sending a campaign SMS.
- Use push notifications together with SMS; push reaches customers with an internet connection, SMS reaches those without one.
- Send outstanding-payment reminders by SMS with a polite tone — see our payment collection tracking guide.
Manage your SMS notifications legally and automatically
With Halı Yıkat Portal, order-status SMS and İYS-compliant campaign management live in one panel.
Frequently Asked Questions
What is İYS and why does it matter?
İYS is Turkey's official system for recording the mandatory consent required before sending commercial electronic messages. Sending commercial SMS without consent is subject to legal penalties.
Does an order-status notification also require İYS consent?
Transactional messages like order status are generally not considered commercial messages, but campaign SMS always requires İYS consent.
Can each company use its own SMS sender ID?
In multi-branch businesses, each company can send SMS under its own sender title, which keeps the brand looking consistent.