There are times that a customer might want to include custom parameters on the beacon that is sent to mPulse. As of June 2015, this data will not show up inside the mPulse dashboards and can only be seen in the raw beacons and DSWB.
Nothing in the original JS snippet needs to change. You simply need to add additional code after the original JS snippet. Below is the example that adds four new custom parameters added to the beacon: UserId, ClientId, GroupId, and UniqueId.