# Explicit Consent Under the GDPR When sending text messages to clients, a distinction must first be made between transactional and marketing messages. Appointment reminders are transactional messages, because they are directly related to an order (or appointment). It is therefore your legitimate interest to send these messages in this context and you do not need the explicit consent of your clients.\ \ ‍**Important:** Depending on the industry, it is recommended to inform your clients in advance and/or ask for permission.In addition, you should inform your clients about the processing of their data for sending text message reminders in your privacy policy.\ \ **Disclaimer**\ ‍*This document is for informational purposes only and does not constitute legal advice. Remind1 users should always seek legal advice before taking any action with respect to these matters.* --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.remind1.com/legal-regulations/explicit-consent-under-the-gdpr.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.