Help Center
Do you support the HSM format?
Clickatell no longer supports the old WhatsApp HSM template format. This has been replaced by the WhatsApp message template send format.
Meta deprecated support for HSMs several years ago and Clickatell has been converting this format in a manner that Meta understands since then. As of October 17, 2024, we are officially ending our support of this format and any template sent using the HSM structure will fail to deliver. Please ensure your message template structures are updated accordingly if not done yet.
Below is a comparison between the HSM structure and the new template structure.
Other resources
Contact support
Contact our support team and one of our agents will be in touch with you to answer any questions you have.
Developer docs
Access the latest technical information regarding Clickatell’s channels, products and APIs.
