MODSYSCF - CUSTOMS OFFICE CONFIGURATION Ó UNCTAD - SITE (V1.15) 9.14                           Fig 9.8 MODSYSCF Functions Series Management Numbering Types Each of the different numbers can be renamed as required.  For example, the Registration number in this case is labeled as the Customs Reference number. To change the label simply ‘Update’ the current description on the following screen. Customs References This  option  allows  the  initialisation  of  the  Registration  number  (Customs  Reference  number).  A different  series  can  exist  for  different  regimes  and  this  is  designated  nationally.  A  different  series letter  identifies  the  different  types  of  series.  For  example,  all  warehouse  declarations  could  be designated the series letter “W” as the prefix for Warehousing Customs Reference Numbers. The series letters for different regimes are defined in  MODCHQ under Customs procedures    –    ‘Model    of    Declaration’.    See    Section    10    of    this    Reference Document for details of assigning Series letters. The procedure for updating the numbering series is identical to the Declarants reference update previously described. Cash Receipt models This  option  allows  the  different  type  of  Cash  receipt  label  to  be  amended  in  a  similar  way  to  the Customs references described above. Individual countries can describe what the different types of receipt are called in ASYCUDA++. The ‘Update’ option gives access to the relevant label for amendment.