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Sending group SMS messages via the API


I am using PHP SDK to send SMS. When I send to one number it works fine but when I try to send to two numbers I get following error:

Business operation is not supported

I am currently on sandbox environment so not sure if this is environment specific issue.


Only a single SMS recipient is currently allowed in order to help prevent unsolicited SMS messages. This is shown in the request example below:!#RefSMSMessages.html

For internal company messages sent directly to user extensions, you can use the pager functionality to send to multiple users in a single API call. This is shown in the request example below:!#RefPagerMessages.html