How to restrict next transaction if the field is empty?

[Darya_Koyfman]

I need to make sure that certain fields on a screen are filled out before the next transacton/step is preceded.

[geemedia_admin]

What you need is a Field Required validator.

https://confluence.atlassian.com/jirakb/how-to-make-jira-applications-fields-required-in-a-workflow-transition-691011903.html