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# Conditional Validation
The **Conditional Validation** works in the same fasion as the [Conditional Logic](conditional-logic) does except that this is used for throwing an error message for a specific field whenever the selected condition(s) did not match.
**Example use case 1:**
Let's say you let the user enter their age and you only allow users to submit the form who are 16 years or older.
In this case you can use the `< Less than` condition and enter the number 16 for this condition.
Now whenever a user enters the number 15 or below, it will display the given error message to the user.
**Example use case 2:**
Let's say you only want to allow users who are between 16 and 18 years old to register the form.
In this case we can use the `>= && <= Greater than or equal to AND Less than or equal to` condition and enter the number 16 for the first condition and the number 18 for the second.
Now whenever a user enters the number 15 or below or either 19 or above it will display the error message to the user.
_Below you can find all the possible conditional validation methods:_
* ?? Contains
* == Equal
* != Not equal
* > Greater than
* < Less than
* >= Greater than or equal to
* <= Less than or equal
* > && < Greater than AND Less than
* > || < Greater than OR Less than
* >= && < Greater than or equal to AND Less than
* >= || < Greater than or equal to OR Less than
* > && <= Greater than AND Less than or equal to
* > || <= Greater than OR Less than or equal to
* >= && <= Greater than or equal to AND Less than or equal to
* >= || <= Greater than or equal to OR Less than or equal to