Action Block Description:
return ??-01-???? for the import date.
Converts the date from the import view into the first date of the month.


      +- CAB_GET_MONTH_FIRST_DAY
      |    IMPORTS: ...
      |    EXPORTS: ...
      |    LOCALS: ...
      |    ENTITY ACTIONS: 
      |  
    1 |  SET local ief_supplied total_integer TO year(import cmips_work date) * 10000 + month(import cmips_work date)
    1 |              * 100 + 01 
    2 |  SET export cmips_work date TO datenum(local ief_supplied total_integer) 
      +--