Program RSDMD_DEL_BACKGROUND is used to delete MD in BW. This program can be included in a PC to regularly clean up the “unused” master data entries of a characteristic. By unused we mean those entries whose SID is not referenced in any InfoProvider.
If you schedule such deletions on a characteristic that is used in a Transactional Infocube you might experience errors when there is an open (tellow) request in the Transactional Infocube.
Note “Note 1258548 – Master data cannot be deleted” expalis this.
One solution to this is probably to switch to load mode before running the deletion.