Use an Alphanumeric Sender ID to send text messages from your branded company name.
Requirements
Alphanumeric Sender IDs can be between 4 to 11 characters in length (most countries have a 6 character minimum) and support the following categories:
- Upper-case letters A-Z
- Lower-case letters a-z
- Numbers 0-9
Your ID must include at least one letter and cannot be composed only of numbers. Non-ASCII special characters and punctuation, including spaces, are not allowed.
Restrictions
One way messaging
Alphanumeric Sender IDs only support one-way messaging. Customers receiving messages from an Alphanumeric Sender ID cannot reply by SMS.
Sakari offers a feature called Universal Reply, which allows responses via a chat interface.
Support for opt-out keywords
Automatic carrier-level opt-out by keyword (e.g. STOP, CANCEL) is not supported by default, as SMS replies are not supported.
The contact will be blocked in Sakari if:
- they send an opt-out keyword via Universal Reply
- they send an opt-out keyword to a dedicated long-code number on your Sakari account
Countries supported
Although Sakari requires you to choose a country to configure the Alphanumeric Sender ID, you can use a single Alphanumeric Sender ID to message any enabled destination
- Alphanumeric Sender ID is not supported in the United States or Canada
- Sender IDs cannot send messages to every country in the world. Please see this list for restrictions: Alphanumeric Sender ID Support by Country.
Add an Alphanumeric Sender ID to your account
Add an Alphanumeric Sender IDs to your account directly in the Sakari Hub: Buy a Number