IContactListProvider variable value is null on CD server

Question

We are fetching data from List Manager list. However, It is working fine for CM but the below code is throwing an error on CD server.

var contactListProvider = ServiceLocator.ServiceProvider.GetService<IContactListProvider>();
var contactProvider = ServiceLocator.ServiceProvider.GetService<IContactProvider>(); 
var contactList = contactListProvider.Get(Guid.Parse(listId), new CultureInfo("en"));

When we try to run above code then contactListProvider value is null on CD.

Answer 1

List Management services DI is configured for Content Management or Standalone Roles. Please check configuration: \App_Config\Sitecore\ListManagement\*.config. To enable the services for CD you need to patch Sitecore.ListManagement.Services.config config file for your CD role.