how can I connect hybris Marketing 1611 with SAP HCI and other external systems?
As far as I know, “Open Channel Integration” is used for this case. But it seems that “Open Channel Integration” is only available for 1702 and later versions.
In yMarketing 1611 we can't create "Communication Systems and Arrangements" as mentioned in https://help.sap.com/viewer/0f9408e4921e4ba3bb4a7a1f75f837a7/1708%20500/en-US/8785ec5fc30b40f0a9fd9368cd15ceef.html
What other possibilities are there? (e.g. for conversion of address data to geocoordinates)