Can ArcGIS Server feature services be taken offline in Collector?

[DavidTinning]

Is there any way that an editable feature service published through ArcGIS server can be taken offline for editing within Collector for ArcGIS?

Having tested our current set up I see that the editbale feature service can be viewed in ArcGIS online and added to a web map. The web map containing the feature service can be viewed in Collector and edits made to the feature service. All great, however the map cannot be downloaded for offline use. 

I assume it is not possible to take the service offline by using Collector through ArcGIS online.

Is there an alternative? Perhaps having a Portal that links to ArcGIS Server?

Any advice would be really appreciated.

[shan_sarkar]

Ah! you are using versioned database hence the edits are going into the versioned tables and you will have to reconcile and post it to the SDE.DEFAULT. 

Offline maps and versioned data—Documentation | ArcGIS Enterprise 

This explains the issue why you are facing this issue.

[DavidTinning]

Great, thank you! The document links were useful. 

I think I now have the following options:

1. Unregister dataset as versioned, this allows offline non-versioned editing and sync of edits automatically back SDE.

2. Keep dataset registered as versioned and use reconcile and post process to move edits to SDE (not yet figured this out but that's a separate issue).

I did try to register as versioned 'with option to move edits to base' but as mentioned on the below page, this means that you can't use geodatabase replication (and so I assume offline mode in Collector). 

http://desktop.arcgis.com/en/arcmap/10.3/manage-data/geodatabases/a-quick-tour-of-registering-and-un...

[shan_sarkar]

Are you planning on One-way replication or Two-way replication?

[DavidTinning]

From reading up about this I think two-way replication would be best, which I think would require the data to be versioned?

[shan_sarkar]

From what I understand your primary data editing is going to happen from Collector for ArcGIS. If that is the case I believe one-way replication should suffice your requirement.