Entity Filter Skips QuoteLineItem Custom Fields in PostCartsItems (Standard Cart APIs)

Use a CpqValidationHook preInvoke implementation to populate the required QuoteLineItem custom field values before Entity Filter evaluation occurs.

Step 1: Create the Hook Implementation Class

Create an Apex class that implements vlocity_cmt.VlocityOpenInterface:

global class CpqValidationHookImpl implements vlocity_cmt.VlocityOpenInterface {
    global Boolean invokeMethod(String methodName, Map<String, Object> input,
            Map<String, Object> output, Map<String, Object> options) {
        if (methodName.equalsIgnoreCase('executeValidationRules.PreInvoke')) {
            executeValidationRules_PreInvoke(input, output, options);
            return true;
        }
        if (methodName.equalsIgnoreCase('executeValidationRules.PostInvoke')) {
            executeValidationRules_PostInvoke(input, output, options);
            return true;
        }
        return false;
    }
    private void executeValidationRules_PreInvoke(Map<String, Object> input,
            Map<String, Object> output,
            Map<String, Object> options) {
        vlocity_cmt.CpqCartDocument cartDoc =
            (vlocity_cmt.CpqCartDocument) input.get('cartDocument');
        Map<String, Object> outputLineItems = cartDoc.call('getAllItems',
            new Map<String, Object>{'hierarchyLevel' => -1});
        // Populate your QuoteLineItem custom field values on each item here
    }
    private void executeValidationRules_PostInvoke(Map<String, Object> input,
            Map<String, Object> output,
            Map<String, Object> options) {
        // Post-validation logic if needed
    }
}

Step 2: Register the Hook Interface

Register the hook implementation through Interface Implementation:

1. Navigate to Vlocity CMT Administration → Interface Implementation.
2. Create a new Interface Implementation Detail record with these values:
   • Interface Name: CpqValidationHook
   • Implementation: CpqValidationHookImpl (or your class name)
   • Is Active: true
   • Is Default: true

Step 3: Activate the Hook

1. Run Clear Managed Platform Cache from Maintenance Jobs.
2. Run Generate Compile Data from EPC Jobs.
3. Verify that compile data generates successfully — the hook is now active.

Step 4: Verify the Fix

1. Add the bundle product to the cart (using Standard Cart APIs).
2. Confirm the child product attribute is now visible when the Entity Filter condition evaluates to false.
3. Confirm the attribute is hidden when the Entity Filter condition evaluates to true.