NameValuePair object is referenced by several Subscribe objects, and is used to hold attributes not otherwise supported in the object. This object is used to store a list of names, which you create and associate with text string values. You use these name-value pairs to store custom data for your own internal tracking purposes, or to store Subscribe specific data for defined Subscribe purposes. Both the name and the value components of a name-value pair are each limited to 255 characters. Both custom and predefined name-value pairs are restricted to the 255 character limit. If you create a custom name-value pair in which one or both components exceeds the 255 character limit, Subscribe returns a 400-series error/return code, to ensure that your data is not lost without warning.
Note: Currently some Methods still silently truncate name value pairs in excess of 255 characters.
Note: Subscribe allows only one value per name per object. NameValuePair objects may have several values associated with each name, but only one value may be used for a given name when assigning name-value pairs to an individual Subscribe object.
For some objects, such as the PaymentMethod, Transaction, and AutoBill, Subscribe automatically generates certain name-value pairs, designated by the prefix vin:. These pairs are listed and defined in the nameValue data member table for the specified object. (For more information, see Working with Name-Value Pairs in the Subscribe Programming Guide.)