I have been getting to know and love my DWH tables. I am trying to understand the meaning behind the LN tables. For example, there is DWH_INV_PROJECT wihich contains out of the box project data and custom fields. Then we have DWH_INV_PROJECT_LN. It contains project data and some more custom fields. The common denominator of the LN tables is that they all seem to have language code fields (and LN therefore is appropriate). Is that the reason for having them? English is our only PPM language so there are only 'en' values in the tables.