diff --git a/docs/en/kb/can-not-login-with-admin-user.md b/docs/en/kb/can-not-login-with-admin-user.md
new file mode 100644
index 0000000000..d69695b503
--- /dev/null
+++ b/docs/en/kb/can-not-login-with-admin-user.md
@@ -0,0 +1,5 @@
+# KB#0003: Can not login with the admin user
+
+* Try username `admin` and Password `1q2w3E*`.
+* Try to migrate database. If you have a `DbMigrator` application in your solution, use it. It will seed initial data and create the admin user for you.
+* If not works, read the README.MD file in your solution, or check the [Getting Started](https://abp.io/docs/latest/get-started) document.
diff --git a/docs/en/kb/index.md b/docs/en/kb/index.md
index 8a497cdeee..44a1ca4a3a 100644
--- a/docs/en/kb/index.md
+++ b/docs/en/kb/index.md
@@ -2,5 +2,6 @@
 
 The following documents provide useful information about several topics you might need to know.
 
-* [How to Fix "Filename too long" Error on Windows](windows-path-too-long-fix.md)
-* [When to Use a Distributed Cache Server](when-to-use-a-distributed-cache-server.md)
\ No newline at end of file
+* KB#0001: ["Filename too long" error on Windows](windows-path-too-long-fix.md)
+* KB#0003: [Can not login with the admin user](can-not-login-with-admin-user.md)
+* KB#0002: [When to use a distributed cache server](when-to-use-a-distributed-cache-server.md)
\ No newline at end of file
diff --git a/docs/en/kb/when-to-use-a-distributed-cache-server.md b/docs/en/kb/when-to-use-a-distributed-cache-server.md
index a414e5cd78..27fced60a9 100644
--- a/docs/en/kb/when-to-use-a-distributed-cache-server.md
+++ b/docs/en/kb/when-to-use-a-distributed-cache-server.md
@@ -1,4 +1,4 @@
-# When to Use a Distributed Cache Server
+# KB#0002: When to Use a Distributed Cache Server
 
 ABP provides a [distributed cache service](../framework/fundamentals/caching.md) that is based on [ASP.NET Core's distributed cache](https://docs.microsoft.com/en-us/aspnet/core/performance/caching/distributed). This document explains when you need to have a separate cache server for your applications.
 
diff --git a/docs/en/kb/windows-path-too-long-fix.md b/docs/en/kb/windows-path-too-long-fix.md
index 6a822c1402..1486abd40f 100644
--- a/docs/en/kb/windows-path-too-long-fix.md
+++ b/docs/en/kb/windows-path-too-long-fix.md
@@ -1,4 +1,4 @@
-# How to Fix "Filename too long" Error on Windows
+# KB#0001: How to Fix "Filename too long" Error on Windows
 
 If you encounter the "filename too long" or "unzip" error on Windows, it's probably related to the Windows maximum file path limitation. Windows has a maximum file path limitation of 255 characters.