Problem with accessing ABAP class constants in Workflow

Hello Everyone,

     I have created a constant in my ABAP WF BO class with direct type entry as shown below.

I need to access these constants for binding between WF and tasks. But these constants are not getting reflected in the class reference on the WF template.

I did the buffer refresh as well. All other structures and constants having Associated types are getting reflected correctly.

Does Workflow not support attributes having direct type entry?

If no, what other options are possible to reduce hard-coding on WF template.

Thanks,

Aniket