To learn about Regex, See Regular Expressions

Steps to Create an Entity

1. Click Entities under AI Tools.
   ​

2. On the Entities window, click Add Entity in the top right corner.

3. On the Create New Entity window, give it a Name and add Description.Select the Entity Definition Method as Regex 

4. Define Regex for an entity so that you can validate the data entries input by the users.

   ​​