Role Resolution Function Module and Container elements

[Dave Aitken]

Hello all,
 
I hope someone can help.
 
I have written my own role resolution function module in order to get a
list of approvers from a reference table, rather than by using the
Organisation Structure. This works fine, but I also wish to hold the names
of these approvers in a container element, so that if the approval deadline
has passed, the initiator of the workflow receives an email with the list
of approver names for that specific workitem. I want to be able to use the
expression in the email text to list the approver names. This is not
working.
 
I have set up the container element as a multiline input and output
container. I have also checked my binding which the system tells me is
consistent. When I use the expression function to pick up the container
element for the email text I can pick up the container element here.
 
I have debugged the function module in test mode, and AC_CONTAINER does
contain entries for my element, but when the email comes through, to notify
the initiator, the list of approver names is blank.
 
The field ACTOR_TAB-OBJID is filled with user names, and I have created an
internal table to hold this name called APPROVER. My code does the
following:
 
 LOOP AT ACTOR_TAB.
    APPROVER-NAME = ACTOR_TAB-OBJID.
    APPEND APPROVER.
  ENDLOOP.
 
  SWC_SET_TABLE AC_CONTAINER 'Approvers' APPROVER.
  APPEND AC_CONTAINER.
 
Can anyone tell me if there are any glaring errors in this bit of code, or
any other explanation for these names not appearing.
 
Many thanks
 
Dave Aitken