diff --git a/modules/identity/src/Volo.Abp.Identity.Domain.Shared/Volo/Abp/Identity/IdentityErrorCodes.cs b/modules/identity/src/Volo.Abp.Identity.Domain.Shared/Volo/Abp/Identity/IdentityErrorCodes.cs
index d5e57a6953..1defe67eeb 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain.Shared/Volo/Abp/Identity/IdentityErrorCodes.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain.Shared/Volo/Abp/Identity/IdentityErrorCodes.cs
@@ -5,5 +5,8 @@
         public const string UserSelfDeletion = "Volo.Abp.Identity:010001";
         public const string MaxAllowedOuMembership = "Volo.Abp.Identity:010002";
         public const string ExternalUserPasswordChange = "Volo.Abp.Identity:010003";
+        public const string DuplicateOrganizationUnitDisplayName = "Volo.Abp.Identity:010004";
+        public const string StaticRoleRenaming = "Volo.Abp.Identity:010005";
+        public const string StaticRoleDeletion = "Volo.Abp.Identity:010006";
     }
 }
diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs
index d2f2cb4a69..40c249e5c4 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs
@@ -54,7 +54,7 @@ namespace Volo.Abp.Identity
         {
             if (role.IsStatic && role.Name != name)
             {
-                throw new BusinessException("Volo.Abp.Identity:010005");
+                throw new BusinessException(IdentityErrorCodes.StaticRoleRenaming);
             }
 
             return await base.SetRoleNameAsync(role, name);
@@ -64,7 +64,7 @@ namespace Volo.Abp.Identity
         {
             if (role.IsStatic)
             {
-                throw new BusinessException("Volo.Abp.Identity:010006");
+                throw new BusinessException(IdentityErrorCodes.StaticRoleDeletion);
             }
 
             return await base.DeleteAsync(role);
diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/OrganizationUnitManager.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/OrganizationUnitManager.cs
index d03e56af79..ec794a51df 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/OrganizationUnitManager.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/OrganizationUnitManager.cs
@@ -131,7 +131,7 @@ namespace Volo.Abp.Identity
 
             if (siblings.Any(ou => ou.DisplayName == organizationUnit.DisplayName))
             {
-                throw new BusinessException("Volo.Abp.Identity:010004")
+                throw new BusinessException(IdentityErrorCodes.DuplicateOrganizationUnitDisplayName)
                     .WithData("0", organizationUnit.DisplayName);
             }
         }