A product administrator needs to add a required rule using Constraint Modeling Language (CML) so...

Explanation (150–250 words)

Constraint Modeling Language (CML) defines logical relationships between quote line items, allowing administrators to automate dependency and compatibility logic in Salesforce CPQ.

The keyword require() explicitly establishes a dependency that ensures one product must exist when another is present in a quote.

The correct syntax must define relationships with multiplicity ranges (e.g., [0..99]) and use the require() function, not constraint(), to specify the rule. Option B meets these criteria:

type Quote {

relation desktop : Desktop[0..99];

relation monitor : Monitor[0..99];

require(desktop[Desktop], monitor[Monitor], "Desktop requires Monitor");

}

This ensures that when “Desktop” is added, “Monitor” is automatically included. The other options are incorrect because:

Option A uses the wrong function (constraint() instead of require()), which defines logical conditions but doesn’t enforce automatic inclusion.

Option C omits multiplicity, which is required for valid relationship definition.

Exact Extract from Salesforce CPQ Implementation Guide:

“The require() statement in CML defines a dependency rule so that when one product is selected, the dependent product is automatically added to the quote.”