Markus,
It is documented in SAP Cloud for Customer Administrator Guide & not in C4C - ERP Integration Guide.
As mentioned in the thread above - its documented in SAP Cloud for Customer Administrator Guide (May 2015), Chapter 4- SAP Cloud for Customer Administrator Guide, Section: 4.9- Industries: Settigs, Sub-section - 4.9.9: Retail, article - 4.9.9.2 Enabling Features in Scoping for SAP Cloud for Customer for Retail - "You can connect to ...fetch information "for several objects including 'Stores'.
Let me know if this helps.
Regards
Venkat