the name of the Issue it has to be added that instruction in the email desctiption

[Fabrizio Facciano]

the name of the Issue field it has to be added in the email description or where can i add this thing in the automation

[Francis Batilo]

@Fabrizio Facciano 

Welcome to the Atlassian Community!

I'll try to assist you with your question.

by referring to the name of the issue field, are your referring to the name of the actual custom field (e.g., test field) or the value of the issue field?

Either way, the documentation that you're looking for should be found in this link: Jira smart values - issues | Cloud automation Cloud | Atlassian Support

I hope this helps.

Cheers,
Francis