In Salesforce Constraint Modeling Language (CML), products from the Product Catalog Management (PCM) are represented by logical placeholders called 'types'. When a new product is added to a bundle in PCM and needs to be included in an existing constraint model, the model itself must be updated. This involves first defining a new type within the CML to represent the new product. After the type is created in the CML Editor, the 'Import Associations' function is used to create the link between the new product in the catalog and the newly defined type in the constraint model.

A. "Add the child product" is imprecise. The correct action within the CML is to create a type as a placeholder, not to add the product directly.

B. This is incorrect because the scenario requires updating an existing and active constraint model, not creating a new one from scratch.

1. Salesforce Industries Communications, Media, and Energy: Constraint Modeling Language Developer Guide, Version 240.1, Summer '23.

Section: CML Types (Page 6): "Types are placeholders for products that are defined in the Product Catalog. You can associate one or more products with a type. You can also associate a type with a product attribute." This establishes the core concept that CML uses types to represent products.

Section: Associating Products with Types (Page 10): "After you define types in the CML, you must associate them with products in the Product Catalog... Click Import Associations. The Import Associations dialog box opens. From the Object Type list, select Product2." This section explicitly details the two-step process: defining the type first, then using "Import Associations" to link the product. This directly supports the sequence of actions described in the correct answer (C).