Trouble changing system status

[Jim D Hill]

Hi ,
 
I created a function module and in that function module I am trying to
change a system status of
a Trade Promotion in CRM.  When setting the status to approved the method
works ok but when trying
to set the status to release the method runs without error but the status
of the Trade Promotion does not change.
Has anyone ever used the class - cl_cgpl_status_management with method
status_change.
 
See method call below -
 
call method cl_cgpl_status_management=>status_change
  exporting
    im_guid        =  lv_cpg_guid
*   IM_CHECK_ONLY  = SPACE
    im_no_check    = space
    im_activity    =  lv_activity
*   IM_ADD_MESSAGE = SPACE
  exceptions
    error_found    = 1
    others         = 2
        .
if sy-subrc <> 0.
 message id sy-msgid type sy-msgty number sy-msgno
            with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
 
Please help !!!
 
 
Jim