System Adders
The pricing model output will categorize a system adder as something that has been flagged to "NOT be visible to the customer". It can be set to be auto-added, or allowed to be manually added, and still will not be visible to the customer.
Some common adders that use design data and are traditionally categorized as system adders are:
System Size
Mounting Type
Mounting Materials
For deal questions:
Reroof
Tree Trimming
Permits
Value Adders
The pricing model output will categorize a "value" adder as something that has been flagged as "visible to the customer". It can be set to be auto-added, or allowed to be manually added, but will be shown to the customer.
In short, system adders are not visible to the customer, and value adders are.