Your school may not have your cell phone number on file, and/or you may not have opted in to the text messaging service. Here’s how to do it:
Step 1: Make sure your school has your cell phone number in their database, designated as a cell phone. (Your cell number may already be listed as your home number, or work number, but it must also be listed separately as a cell phone in order to receive texts.)
Step 2: Text the word YES to 67587 to opt in.