customizing a workflow such a specific transition is enabled in dependency in a specific field

[kerensho]

Hi,

I'm working with Jira software, and I'm trying to implement the next scenario: the issue will move from status A to  status B only if the the UDF 'myfield'  is not empty.

any ideas on how to implement?

many thanks to the helpers :)

[Joe Pitt]

If the field is already filled out a workflow condition can be used. the workflow will not become available until the field is filled out. 

[kerensho]

Thanks,  I couldn't find the condition that works according to a content of field, only conditions that are relevant - to the permissions, group, role,etc.

which  condition refers to field's content?