Data Management Capabilities > Managing Part Structures > Developing Advanced Selection Logic for Configurable Modules > Basic Steps for Defining Advanced Selection > Assigning a Logic Reference to Another Configurable Module
  
Assigning a Logic Reference to Another Configurable Module
You can reuse the logic and parameter selection defined in one configurable module that is external to a part structure, to a part inside the structure. To do this, you need to create a logic reference from a part in the structure to the external part. Once a logic reference is created, you can constrain certain parameters to obtain their values from the configurable module that is identified as a logic reference.
* 
If you need to reference parameters from a configurable module within the same part structure, you must use either equivalencies or external parameter references. For more information, see Passing Parameter Values between Sections of a Product Structure Using Equivalencies and Passing Parameter Values between Sections of a Product Structure Using Reference IDs. You can use the logic reference technique only if you want to reference a parameter from a part that is external to the structure.
Referencing a configurable module follows these rules:
• A configurable module can reference multiple configurable modules.
• Within a configurable structure, configurable modules can reference different configurable modules.
To create a logic reference:
1. Go to the information page of a configurable module.
2. Show the Logic References table by adding a new tab and selecting Customize > General > Logic References.
3. Click the add icon .
4. In the Logic References window, specify the object type from the Type list.
5. Type the part name and number, or click Search.
6. From the search results, select the part to reference.
7. Type the name for the reference in the Reference field, and click OK.
8. The new logic reference is added to the Logic References table, and the part is checked back in. The reference points to a specific version of the configurable module.