WF Template Transportation

Hi SDNers,

I need a clarification regarding transporting of workflow template.

I have included one activity in all the workflow templates in my DEV system.

But fee of the workflow steps might be differ from DEV System to PRD System.

Now I included a simple activity in all the workflows at DEV. If I transport this request to PRD, then the whole workflow template will change or only the step which I included will create at PRD?

Kindly clear my doubt.

Regards,

Venkat