CampaignID is a Read/Write string property that represents an identifier for the PICampaign object. Changes to this property are stored on the Server as well as the in the in-memory representation of the object.
The object placeholder is an object expression that evaluates to a PICampaign object.
The CampaignID may be left blank, but must follow these rules:
1. No control characters are allowed; such as linefeeds or tabs
2. The following characters are not allowed:
* ' ? | ` "