What's purpose of gplus-analytics-id in Gplus Adapter for SAP ICI Multi-Channel?

We want to make certain link between SAP interaction record and Genesys ICON record. The best way is to link by connid. By default the adapter will send “gplus-analytics-id” as attach data to SAP for this purpose. However, unlike normal conn id, this one is in another format of “ffdfc0:11bfb866d77:-7f3d”. Does anyone know how to convert between the two or if this doesn’t work, how to link those records? Thanks in advance.