PartDim Table

So I’ve been looking at a BAQ on Lots/PartBin Etc. and noticed a field on the part bin that referenced DimCode, which from my understanding just translates to the UOM on that particular Part/Lot.

I just happened to be looking at the table view in SSMS and noticed a Erp.PartDim table. I’m not really sure how fits in with the whole UOM conversion and parts. It’s not populated in our environment.

Can anyone explain how this table is used?