CPQ Lookup as Configuration Attribute on Product Option to filter search results

Lookup Filters on the Product Option object can filter records using fields on either the Lookup object or Product Option object. When used as a Configuration Attribute in the Configurator, Salesforce CPQ allows an admin to treat a Configuration Attribute as a Product Option field for the purposes of enforcing a Filtered Lookup.

Example:  

Setup:

• Create a custom object (eg., Address) which has a lookup field to the Account and the field's API name is Account__c
  • Note: using the standard Address object in this setup will throw the error Can't perform lookup due to field encryption or a querying error.
• Create a Lookup field on the Product Option and select Address (Address__c) as the lookup object
• Create a Configuration Attribute on the bundle and select Address__c as the Target Field
• Create a Lookup field on Product Option and select Account (Account__c) as the lookup object
• Create a Configuration Attribute on the bundle and select Account__c as the Target Field. This Configuration Attribute should set Default Object = Quote and Default Field = SBQQ__Account__c. Optionally, it may be made hidden as well by setting Hidden to true. 
• In the Field definition for Address__c on the Product Option object, select Edit
• In the Lookup Filter Section, define the following criteria:
  • Product Option: Account - Equals - Field - Address: Account
  • This Filter Type should be Required = True and Active = True

Utilizing the Address__c lookup in the Configurator as a Config Attribute should now only return Addresses associated with the same Account as the Quote.