Displaying Scanned Invoices through Portal ?

[Cristiana D'Agosto]

G'day all,
 
I am developing a workflow that will start from a scanned invoice
(FIPP.CREATED is published).
 
We are currently in 4.6c
 
I understand that there are limitations of workflow on the web (Portals) -
OSS note 487649 - "...you cannot open a second window in the browser. This
concerns specially the parallel display of original documents in an SAP
ArchiveLink Viewer"
 
How can I display the scanned image within my workflow through the Portal?
What are the alternatives? The client currently uses Portal for ESS and
uses the BSWP inbox. The client's preference is for the users to undertake
workflow actions via the Portal.
 
The client is already using scanned images but without workflow and
outside the Portal. Currently the users go to the display invoice
transaction and from there they click the Services for Object button >
Attachment List > Display.
 
Would it work if I created another button for the user in the user
decision so the user can Display Invoice? I could put this user decision
in a loop and only get out if the option is not Display Invoice (would be
a bit of a bummer to use this approach as the users should be able to
display the invoice and attached image in every work item, and there are
quite a few).  Any ideas?
 
Much thanks and regards
 
Cristiana