I am creating an Attachment Viewer app using a published map service with the data being pulled from an SDE database. I have found articles stating you don't need to use hosted data and I can simply use the REST point from my published map service (ArcGIS 10.8). Then I see an article that references I need to use ArcPRO to publish my map service.
I created a web map that supports attachments and you can open the attachments in the pop-up I have configured. After I create the Attachment Viewer web app, it can't find any attachments. Under the 'General' tab inset map, I have the following - This application requires a layer that supports attachments and has 'supportsQueryAttachments' set to true. I select the web map I created, but still no attachments.
Any thoughts or suggestions? Thank you in advance.