21619: A text message body or media urls or content sid must be specified

In order to send a message, you must include either a text body or at least one media URL or a Content SID

You attempted to send a message, but you forgot to include the 'Body' or 'MediaUrl' or 'ContentSid', either a text body or at least one media URL or a Content SID is required.

Please include either a text body or at least one media URL or a Content SID