There was a enhancement I received from client in nopCommerce. Which was require to add a new table in nopCommerce(NC) database, so that we have store additional information in it. As per NC team we should not add any enhancement directly to NC. Enhancement must be added in the form of Plugin. As I didn't learn how to develop plugin so for the quick resolution I have added table to NC. Here are the steps to add table to NC: 1) Add your POCO class under Nop.Core > Domain > [Related Folder] > YourClass.cs using Nop.Core.Domain.Customers; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Nop.Core.Domain.Orders { public partial class MediaClipUserMapping : BaseEntity { public int CustomerId { get; set; } public string MediaClipUserId { get; set; } /// <summary> /// Gets or sets the customer /// </summary&