Does Portal for ArcGIS share to ArcGIS Hub? I'm curious how these applications interact with each other.
The ArcGIS Hub product works with your existing ArcGIS Online organization. So you could enable your Portal for ArcGIS to share content with your ArcGIS Online organization, via distributed collaboration. Then ArcGIS Hub could access the content.
Distributed collaboration—ArcGIS Online Help | ArcGIS
ArcGIS Online and ArcGIS Enterprise Early Adopters Community Available Now | ArcGIS Blog
Hope this helps,
It is possible to allow Data hosted on hub pages to sync to on-premises portals with updated links so members that choose to connect portal to portal can provide the same shopping experience to their users.
As Derek mentions, you can use distributed collaboration to share data from ArcGIS Online (where you are exposing the data using Hub) back to ArcGIS Enterprise - so long as your ArcGIS Enterprise version is 10.5.1 or higher. Here is a quick blog on enabling collaboration: https://www.esri.com/arcgis-blog/products/arcgis-enterprise/sharing-collaboration/distributed-collaboration-released/
If you want to share the data as a copy to ArcGIS Enterprise, you'll need to have sync enabled on the layer (on the layer details page, select the Settings tab > Enable Sync (disconnected editing with synchronization)). Only the source can sync edits in collaboration. For example, if you share from ArcGIS Online > ArcGIS Enterprise, any edits made to the layer in Online will sync with Enterprise, but if edits are made to the layer in Enterprise, they won't sync back with Online.
Hope this helps; let me know if you have any questions,
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