diff --git a/Src/Dlhis.Basic/Organization/Services/Implements/GainfoUpdateService.cs b/Src/Dlhis.Basic/Organization/Services/Implements/GainfoUpdateService.cs
index d47a4ebe..2c7d2a01 100644
--- a/Src/Dlhis.Basic/Organization/Services/Implements/GainfoUpdateService.cs
+++ b/Src/Dlhis.Basic/Organization/Services/Implements/GainfoUpdateService.cs
@@ -207,7 +207,7 @@ public class GainfoUpdateService : IGainfoUpdateService
             Code = item.ename,
             CountryNo = item.country,
             IdClass = item.idcls,
-            IdNo = item.idno,
+            IdNo = item.idno.ToUpperInvariant(),
             Native = item.native,
             Gender = item.sex == "F" ? GenderEnumType.Female : GenderEnumType.Male,
             Birthday = item.birthday,
diff --git a/Src/Dlhis.External/Appointment/Services/Implements/AppointmentService.cs b/Src/Dlhis.External/Appointment/Services/Implements/AppointmentService.cs
index 30547c3e..a465c22b 100644
--- a/Src/Dlhis.External/Appointment/Services/Implements/AppointmentService.cs
+++ b/Src/Dlhis.External/Appointment/Services/Implements/AppointmentService.cs
@@ -152,7 +152,7 @@ public class AppointmentService : IAppointmentService
                         Code = await GetNextExternalCodeAsync(),
                         Gender = GetGender(item.IdNo),
                         Type = GainfoUserTypeEnumType.External,
-                        IdNo = item.IdNo,
+                        IdNo = item.IdNo.ToUpperInvariant(),
                         Name = item.Name,
                         Source = request.Source,
                         Phone = item.Phone,