You can choose from 2 types of dedication messages.
1: The usual input where a donor can enter the message, or
2: A remembrance message where a donor can enter a name to learn or daven for.

Below are screenshots of how these look on the checkout form

Simple Dedication Message

Remembrance Dedication Message

To prevent spam, we need to verify your phone number. We'll send a text message with a verification code to your phone number.