Need help with adding attachments

Hi Experts,

I have a requirement of adding PO attachments to Work item using workflow class/method.

PO attachments I'm getting using Table: TOA03 after passing object_id as PO and sap_object as 'BUS2012'. Then I pass this info to FM: ARCHIVOBJECT_GET_TABLE.

How to pass this as attachment to Workflow and it should display as same file type.

P.S: Couldn't find solution to this using Class, Methods

Regards,

Shailendra