Department Segment to be populated based on Work center for Usage Variance

Hello

We have the requirement to populate the "Department segment" for the "Usage Variance" based on the "Work Center" in manufacturing work order. When I looked at the available sources for the mapping set, the work center is not available as an input parameters for "WIP Variances". Can someone please let me if you have come across with such requirement and how to fulfill the same.

Thanks

Pradeep