Informational Notice: This page is prepared for educational and general guidance purposes only. It does not replace official legal advice. For specific situations, we recommend consulting a legal advisor or the relevant regulatory authority (BTK / IYS). Last updated: May 18, 2026.
The first step in compliant SMS sending is correctly classifying the message type. Each type is subject to different rules: some require IYS consent, others do not · some have specific content restrictions.
The short flow below shows which category your message falls into and which modules you need to read.
1. What is the purpose of your SMS?
This flow is for general guidance only · for specific situations refer to the official sources in Module 6 or consult your legal advisor.
Downloadable Resources
Academy Materials
Two short documents to keep at hand during campaign preparation.