Presort System Variables These system variables are generated by a postal presort program such as Mailstream Plus. %%DOCINDEX %%ENDORSEMENT_LINE or %%ENDORSE %%KEY_LINE %%LPC_INKJET %%MC_BARCODE %%MSP_IMB %%PACKAGE_BREAK %%PACKAGE_NO %%PACKAGE_QUAL %%PIECE_RATE %%PRESORT_RECORD %%SACK_BREAK %%SACK_NO %%SACK_QUAL %%SPLIT_INDICATOR %%SPLIT_NAME %%SPLIT_NO %%TIER_LEVEL %%TRAY_BREAK %%TRAY_NO %%TRAY_QUAL