Adding Mobile Templates
Find out how to use mobile templates for SMS reminders
Mobile templates in Expiration Reminder are separate from email templates but work the same, you simply need to assign a mobile template to the email template should you make edits to mobile ones or add new/custom mobile templates. Please read on to learn more.

By default, there will already be three mobile templates within your account to act as a "catch-all".
Even if it says no mobile template is selected on an email template, should a Contact allow SMS delivery for notifications, a default template will be used for their reminder.
You can add a New Mobile Template from the green button in the top-right corner.

Assigning a Mobile Template
Mobile templates can’t be configured directly on expiration items, categories, locations or contact types. You set email templates for these, but not mobile templates. Mobile templates are only set when editing or adding an email template. This way the system will know what mobile template to use when sending an email template.
From the screenshot below, you will see where you can assign a mobile template reminder to an email template. When it says NONE are assigned as per the screenshot example, the default one will send. If you've made edits to the default templates or created new ones and want those to be activated and used in conjunction with the corresponding email template reminder, assign it on the email template in the mobile template field. ie: If you edit the default mobile template for 'before the expiration date', then be sure to assign it as per below on the 'before the expiration date' email template.

These templates are different because they don't support any formatting and are plain text.
Limits
Mobile text messages are limited to 160 characters.