The back-to-back fulfillment process is one in which specific sales order demand triggers supply creation, and a link is established between the sales order and the supply.

Constraint Definition Language (CDL) is a language that you use to create configurator rules in Configurator Cloud. CDL supports two types of statements: explicit and implicit. An explicit statement is a type of statement that specifies the exact nodes and attributes that participate in the rule, and limits the scope of the rule to those nodes and attributes and the model that contains them.An explicit statement uses the dot (.) notation to identify the location of the nodes and attributes in the model structure1. For example, the following rule is an explicit statement:
Model1.Feature1.Option1 IMPLIES Model1.Feature2.Option2
This rule means that if Option1 of Feature1 is selected in Model1, then Option2 of Feature2 must also be selected in Model1. The rule only applies to Model1 and its nodes and attributes.
References:
* Overview of Constraint Definition Language

Order extensions are custom actions that you can define to manipulate data on sales orders, such as adding, updating, copying, or returning lines1.You can use order extensions to handle order revisions from customers, such as adding additional products or services to support items they have already ordered2. The four types of line actions that can be executed by this extension feature are:
* Copy: This action creates a new line by copying an existing line on the same order.You can specify the attributes to copy and the attributes to change on the new line1.
* Update: This action updates one or more attributes of an existing line on the order.You can specify the attributes to update and the new values for them1.
* Create: This action creates a new line on the order.You can specify the attributes and values for the new line1.
* Return: This action creates a return order line for an existing line on the order.You can specify the attributes and values for the return line1.
References:
* Examples of Order Management Extensions for Order Lines
* Overview of Order Management