Populating 0STABUPSYS0 from 0BPARTNER_ATTR

Field 0STABUPSYS0 states that it is the Partner: Archive/Delete filed. There is a field called XDEL from the 0BPARTNER_ATTR DataSource that holds the Archive value. The issue that I see is one is a flag (XDEL) and the other is a NUMC field? So we can't store 'X' into the NUMC field. Is this the correct mapping or should we be putting this XDEL field into a different target InfoObject?