GlideSysAttachment Business rule not adding attachment

[Kearney]

I have an inbound action which creates a request and child RITM. The inbound action runs on the sc_request table so by default the attachments get added to the request. I have created a BR which runs After insert on the sc_req_item table however I cannot get the attachment to add on insert at all
--BR Code--

var att = new GlideSysAttachment();
var copiedAtt = att.copy('sc_request', current.request, 'sc_req_item', current.sys_id);

 
Any help is appreciated!
Thanks

[Sandeep Rajput]

@Kearney Could you please update the script as follows and check it it works.

var att = new GlideSysAttachment();
var copiedAtt = att.copy('sc_request', current.getValue('request'), 'sc_req_item', current.getValue('sys_id'));

Hope this works.