1. How to configure SAP Archivelink to store the incoming scanned images (AP invoice)from the scanners which were already working with the third party solution?
The configuration depends on the content Area. Which content area is decided up on?
2. How to trigger the SAP workflows (AP Parked document workflow with the invoice image) from OAWD?
You need to develop the custom workflows
3. How can the end user access the stored images through workflow for approval?
Same, you need to develop the custom workflows
Thanks,
Kolusu