How to Add Custom Properties to the User Entity

Note: If your application is greater than version 4.3.3, please follow this article.


In this step-by-step article, I will explain how you can customize the user entity class, which is available in every web application you create using the ABP framework, according to your needs. When you read this article, you will learn how to override the services of built-in modules, extend the entities, extend data transfer objects and customize the user interface in the applications you develop using the ABP framework.

Note: This article is not about customizing the Login page. If you have such a need, please follow this article.

You can see the screenshots below which we will reach at the end of the article.



Preparing the Project

Startup template and the initial run

Abp Framework offers startup templates to get into the work faster. We can create a new startup template using Abp CLI:

abp new CustomizeUserDemo

In this article, I will go through the MVC application, but it will work also in the Angular, Blazor Server, and Blazor WebAssembly application.

After the download is finished, we can run CustomizeUserDemo.DbMigrator project to create the database migrations and seed the initial data (admin user, role, etc). Then we can run CustomizeUserDemo.Web to see that our application is working.

Default admin username is admin and password is 1q2w3E*


In this article, we will go through a scenario together and find the solutions to our questions through this scenario. However, since the scenario is not a real-life scenario, it may be strange, please don't get too about this issue :)


Add two new properties to the AppUser in the Users folder of the CustomizeUserDemo.Domain project as follows:

public string Title { get; protected set; }

public int Reputation { get; protected set; }


Create the Users folder in the CustomizeUserDemo.Domain.Shared project, create the class UserConsts inside the folder and update the class you created as below:

public static class UserConsts
    public const string TitlePropertyName = "Title";

    public const string ReputationPropertyName = "Reputation";

    public const int MaxTitleLength = 64;

    public const double MaxReputationValue = 1_000;

    public const double MinReputationValue = 1;


Update the CustomizeUserDemoEfCoreEntityExtensionMappings class in the CustomizeUserDemo.EntityFramework project in the EntityFrameworkCore folder as below:

public static class CustomizeUserDemoEfCoreEntityExtensionMappings
    private static readonly OneTimeRunner OneTimeRunner = new OneTimeRunner();

    public static void Configure()

        OneTimeRunner.Run(() =>
                .MapEfCoreProperty<IdentityUser, string>(
                    (entityBuilder, propertyBuilder) =>
                ).MapEfCoreProperty<IdentityUser, int>(
                    (entityBuilder, propertyBuilder) =>

This class can be used to map these extra properties to table fields in the database. Please read this article to improve your understanding of what we are doing.

So far, we have added our extra features to the User entity and matched these features with the ef core.

Now we need to add migration to see what has changed in our database. This for, open the Package Manager Console (PMC) under the menu Tools > NuGet Package Manager.


Select the CustomizeUserDemo.EntityFramework as the default project and execute the following command:

Add-Migration "Updated-User-Entity"


This will create a new migration class inside the Migrations folder of the CustomizeUserDemo.EntityFrameworkCore project.

If you are using another IDE than the Visual Studio, you can use dotnet-ef tool as documented here.

Finally, run the CustomizeUserDemo.DbMigrator project to update the database.

When we updated the database, you can see that the Title and Reputation columns are added to the Users table.



Open the CustomizeUserDemoModuleExtensionConfigurator in the CustomizeUserDemo.Domain.Shared project, and change the contents of the ConfigureExtraProperties method as shown below:

private static void ConfigureExtraProperties()
    ObjectExtensionManager.Instance.Modules().ConfigureIdentity(identity =>
        identity.ConfigureUser(user =>
                options =>
                    options.Attributes.Add(new RequiredAttribute());
                        new StringLengthAttribute(UserConsts.MaxTitleLength)
                options =>
                    options.DefaultValue = UserConsts.MinReputationValue;
                        new RangeAttribute(UserConsts.MinReputationValue, UserConsts.MaxReputationValue)

That's it. Now let's run the application and look at the Identity user page. You can also try to edit and recreate a record if you want, it will work even though we haven't done anything extra. Here is the magic code behind ABP framework.

If there is a situation you want to add, you can click the contribute button or make a comment. Also, if you like the article, don't forget to share it :)

Happy coding :)

Ariful Islam 186 weeks ago

You didn't explain how to insert/get data to Reputation/Title fields. I know it can be done in the following way: user.SetProperty("Title", "My custom title value!"); var user = await _identityUserRepository.GetAsync(userId); Is there any better way. Also, could you please provide the source code.

Berkan Şaşmaz 186 weeks ago

Actually, if you do what I said in step-4, the added properties appear in the creation and update forms of the related entity. For more detailed information, you can check here (

So I don't think you need source code, but if you want to look anyway, you can check here (

Kevin Tshimanga Tshimanga 183 weeks ago

Hello, very useful article. how do you manage if you want to add relationships with other entities, such as a User has many orders and so on ?

Berkan Şaşmaz 183 weeks ago

Hello, I am very glad you found the article useful. You can find the answer to your question from the link here(

Ruslan 182 weeks ago

Thank you for the article. I followed all the steps and successfully created the extra fields in the AbpUser table. However, I couldn't manage to display the new fields in the New User form. I'm using Blazor UI and EFCore, are there any extra steps I should take? Thanks in advance

Berkan Şaşmaz 182 weeks ago

Hello, right now this feature is not supported for the Blazor UI framework.

Ruslan 178 weeks ago

It is also absent from Swagger API. When I try to create a user (either from API or from UI), I get the error "The following errors were detected during validation. - The ConfirmationType field is required." which is the enum that I added following this tutorial. Funny thing is that the field is optional and has a default value. Do you get to see your fields on Swagger API?

Berkan Şaşmaz 178 weeks ago

Hello, the problem might be that the Title is IsRequired. I will update the article as soon as possible. Also, when I query a user on Swagger, I have "Title" and "Reputation". If you think there is a problem related to this issue, you can create a new issue with the steps of the problem so that we can repeat the problem.

Berkan Şaşmaz 169 weeks ago

Hi Ruslan, module extensibility feature is supported for Blazor WASM and Blazor Server together with ABP v4.3. So you can apply what is described in this article right now on all ABP user interfaces :)

Thank you for your suggestion :)

For more detailed information, you can check here =>

1 1
Ruslan 168 weeks ago

Hi there Berkan, thanks for letting me know. That's great news :) I will give it a try at soonest!

1 1 1 178 weeks ago

when i flow you to change the AppUser info, the UI is running ok,but i cann't Register a new user ,it's still to show error for Title Null Exception.

          ps: in User Page,the cuid for AppUser is ok.

Berkan Şaşmaz 178 weeks ago

Hello, the problem is caused by the "propertyBuilder.IsRequired();" line in step-3. If we replace this line with "propertyBuilder.HasDefaultValue(string.Empty);", the problem will be solved. Thank you for your feedback, I will update the article as soon as possible.

nick.coleman 176 weeks ago

Really helpful article and some great functionality there. Is there a way to order the properties? So I can control the display of these in the UI?

Berkan Şaşmaz 176 weeks ago

I am delighted that you like the article :) Yes, you can do that really easily. ABP has a lot of great features, but I especially like to be able to the extent or customize everything. And there is a very nice document written about it :) I believe you will find the answer to your question here:

nick.coleman 176 weeks ago

Ah right.. I was hoping there was a way to order them without having to override the UI.. so we could add them via the object extensibility and order them at the same time somehow as they appear in a random order... That's fine I will create a new UI... Thanks!

nick.coleman 176 weeks ago

Ah right.. I was hoping there was a way to order them without having to override the UI.. so we could add them via the object extensibility and order them at the same time somehow as they appear in a random order... That's fine I will create a new UI... Thanks!

Engincan Veske 150 weeks ago
David Crumb 171 weeks ago

I would like to be able to have each Tenant to manage values from an extended Tenant entity. Say for example I had an extension to the Tenant entity such as:

public string TenantOfficialName {get;set;)

and I want each tenant to be able to manage this field.

What approach would you take. The UI for the tenant?

Many thanks