How to classify tasks by department: front, design, backend, database?

[Mathew Dubrovin]

In task body we have only Labels, but it is not comfortable.

We wont dropdown named Department after Issue Type, where we can add ours departments.

How can we do it?

[Danny Coleman]

You'll want to create a new dropdown custom field called "Department".

Once the field is created, you'll need to ensure that it is on the screens that relate to the issues on which you'd like the field to appear.

[Mathew Dubrovin]

i can not create custom field in cloud platform

[Danny Coleman]

It is possible to create custom fields in Jira Cloud, though you might not have the permissions required to do so. If you have the "Administer Jira" permission, then the following documentation should help you in creating a new custom field.

https://confluence.atlassian.com/adminjiracloud/adding-editing-and-deleting-a-custom-field-776636410.html

If you don't have the appropriate permissions, then you'll want to reach out to your local Jira administrator to see if they can help.