We are using the 9.0.1 Lawson Financials suite and have many users across multiple networks. We have created a simple web application for the Lawson user to upload requistion and purchase order documents to a web server for storage. The link that is entered in the URL attachment in Lawson links to the documents on this web server. We are going to outgrow this simplistic process soon.
I was wondering what other companies have used for a document storage and retrieval solution with Lawson.

Any input would be greatly appreciated. Thank you!

I am currently at Lawson implementing their Invoice imaging solution which is Image Now,  it is not out of the box to create a URL attachment to view the image, we are in the process of developing a script within ImageNow to do this when an image is "linked" to AP20. 

I have also seen clients develop a Design Studio solution for this that calls an image now API passing the invoice parameters.  Keep in mind with URL attachments while they give instant access across many forms, there is no security behind it to prevent someone form "accidentily" overwriting the attachment and losing the link which is why I prefer the "button" on a custom DS form.