**As** a Begin of the insertionadministratorEnd of the insertion Begin of the deletion \[enter role of user\]End of the deletion
**I want to** Begin of the insertionhave a validation on my inputs in the subject generation patternEnd of the insertion Begin of the deletion \[enter objective\]End of the deletion
**so that** Begin of the insertionno broken patterns are saved.End of the insertion Begin of the deletion \[enter desired result\]End of the deletion

**Acceptance criteria**

* Begin of the insertionIf the input contains an invalid attribute token, the form validation must display a message describing the error.End of the insertion Begin of the deletion <br>


**Technical notes**

* <br>


**Permissions and visibility considerations**

* _To whom is this feature visible?_

* _When is it not visible?_


**Out of scope**

* <br>End of the deletion