A reference to the customer or customer job.
The Customer property indicates the Customer who has purchased goods or services from the company.
Name/Id Reference Properties
This property is used to reference an object that is already done within QuickBooks. This may be done with its full Name (this property) or its Id, for which a corresponding property is defined. If Name is used, it must contain the full name of the object referred to, as generated by QuickBooks. For hierarchically defined objects, such as Customers, this includes the names of parent objects, and the full name can be determined by reading the FullName special field.
Setting the value of this property will set the corresponding Id property to an empty string.
Either CustomerId or CustomerName is required.