Notice of changes to SMS signature request rules

Updated at:

Dear Alibaba Cloud Short Message Service users,

Alibaba Cloud is updating the rules for requesting SMS signatures to regulate the SMS marketplace, protect user rights, and ensure high delivery success rates. These changes align with requirements from the Ministry of Industry and Information Technology (MIIT) and carrier-specific deployments. Requests for signatures from the following sources are no longer supported:

Signature source

Rule change

Official Account or Mini Program

No longer supported. Use the name of your enterprise or public institution as the signature source.

E-commerce platform store name

No longer supported. Use the name of your enterprise or public institution as the signature source.

Website with an ICP filing

No longer supported. Use the name of your enterprise or public institution as the signature source.

Testing or learningimage

No longer supported. To learn about or test Short Message Service, use the Quick Start and Test feature in the Short Message Service console.

Online trialimage

No longer supported. Use the name of your enterprise or public institution as the signature source. If your application is about to be published or is in the testing or trial phase, request a signature after the application is officially online.

Follow the SMS signature specifications and select a different signature source for your signature name. If you already use a signature from one of the sources listed above, disable or delete it and use a signature from a compliant source. Adhere to the specifications to send text messages responsibly.

Thank you for your support and trust.