How do I make the Job Description field required?

[Виталий А_]

How do I make the Job Description field required?

See the window for registering the execution time in the work log (Jira-Server).

[Rob Horan]

Create a field configuration in which this field is required, add it to the field configuration scheme for your project, associating that issue type with with the new field configuration you created.

This page should be able to help: https://support.atlassian.com/jira-cloud-administration/docs/associate-field-behavior-with-an-issue-type/