Assign Default value to the category in chat window in DCS based VBCS application

Summary

Assign Default value to the category in chat window in DCS based VBCS application

Content

Hi 

Can we assign a default value to the category field in chat window in DCS based VBCS application ?

If Yes how can we set the default value for the category field in chat window ?

Any Help/Suggestion ?

Thank You,
Prudhvi Varma