If you receive what appears to be an error message similar to one of the following it most likely means that short code text messaging is not enabled on your wireless subscription plan:
Service access denied
Shortcode may have expired or shortcode texting may be blocked on your account
Does not participate
These replies DO NOT indicate that the wireless provider can’t receive messages from SchoolMessenger. Rather, they are an indication that the mobile device does not have short code SMS texting enabled for that number. This is sometimes disabled by default on company provided cell phones. To address this contact your wireless provider.
[Note: Providers sometimes use various names for this type of texting service (e.g. short code, SMS, premium, etc.). If you simply ask about text messaging, your carrier may assume you are referring to person-to-person. Therefore be very clear to refer to “short code” text messages. Most TV programs with a voting component use short code SMS messaging (e.g. American Idol, Dancing with the Stars, etc.). Using an example such as this can be a way to clarify the type of texting service you want to enable.]