Edit Promotion Request name in Workflow expression

Hi,

I'm striking out on finding a solution already posted for this. I have found posts on the customization of the initial name of the PR, but I'm looking for something different.

I'd like to edit the Promotion Request name in a Workflow expression, I'd like to add the value of a workflow variable to the Promotion Request name; so in the users task list the task Subject tells them the variable name.

Can anyone point me to a post on this, or have a solution to share?

Thanks!

Vaughn (WC10.1 M040)