Hello we used Portal and Server version 10.3
When I try to add attachment to my feature service in Portal I have error message "Extension not found". When i check ArsGIS Server logs there is "Unable to process request. Extension not found".
My workflow is:
Publish map service with "Feature access" capability (has attachment is set to True)
I add this service as item to My Content to Portal
When i can edit data - add attachment I have that error message "Extension not found".(I can see existing attachment)
When I open feature service in REST and open it in ArcGIS.com, I am able to add attachment.
Do you have any idea why i cannot add my attachment in Portal?
Is it even possible with federated service?
Could by problem with security? - certificate?
Thanks for response