diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240101/Requests/FindTeachersRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240101/Requests/FindTeachersRequest.cs
index fc7c2998d7..91950405ff 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240101/Requests/FindTeachersRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240101/Requests/FindTeachersRequest.cs
@@ -14,5 +14,5 @@ public record FindTeachersRequest
 
 public enum FindTeachersFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240606/Requests/FindPersonRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240606/Requests/FindPersonRequest.cs
index b16a95ca29..27fd0625e9 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240606/Requests/FindPersonRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240606/Requests/FindPersonRequest.cs
@@ -14,5 +14,5 @@ public record FindPersonRequest
 
 public enum FindPersonFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240814/Requests/FindPersonRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240814/Requests/FindPersonRequest.cs
index 52a2a5f921..b064e53d14 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240814/Requests/FindPersonRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240814/Requests/FindPersonRequest.cs
@@ -14,5 +14,5 @@ public record FindPersonRequest
 
 public enum FindPersonFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240920/Requests/FindPersonRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240920/Requests/FindPersonRequest.cs
index 5b441acef9..fd19d1faa7 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240920/Requests/FindPersonRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20240920/Requests/FindPersonRequest.cs
@@ -14,5 +14,5 @@ public record FindPersonRequest
 
 public enum FindPersonFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250203/Requests/FindPersonRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250203/Requests/FindPersonRequest.cs
index f0a9a0db4b..e18e6a9f0c 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250203/Requests/FindPersonRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250203/Requests/FindPersonRequest.cs
@@ -14,5 +14,5 @@ public record FindPersonRequest
 
 public enum FindPersonFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250327/Requests/FindPersonRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250327/Requests/FindPersonRequest.cs
index f88b3a0089..40c91a2096 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250327/Requests/FindPersonRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250327/Requests/FindPersonRequest.cs
@@ -14,5 +14,5 @@ public record FindPersonRequest
 
 public enum FindPersonFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250627/Requests/FindPersonRequest.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250627/Requests/FindPersonRequest.cs
index 702f06fc72..5a2aa5363a 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250627/Requests/FindPersonRequest.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Api/V3/V20250627/Requests/FindPersonRequest.cs
@@ -14,5 +14,5 @@ public record FindPersonRequest
 
 public enum FindPersonFindBy
 {
-    LastNameAndDateOfBirth = 1
+    LastNameAndDateOfBirth = 0
 }
diff --git a/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240101/FindTeachersTests.cs b/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240101/FindTeachersTests.cs
index d67ccd76c1..d8bf5e39d9 100644
--- a/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240101/FindTeachersTests.cs
+++ b/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240101/FindTeachersTests.cs
@@ -37,7 +37,7 @@ public async Task Get_ClientDoesNotHavePermission_ReturnsForbidden(string[] role
     }
 
     [Theory]
-    [InlineData("", "Invalid matching policy.")]
+    [InlineData("", "The value '' is invalid.")]
     [InlineData("BadFindBy", "The value 'BadFindBy' is not valid for FindBy.")]
     public async Task Get_InvalidFindBy_ReturnsError(string findBy, string expectedErrorMessage)
     {
diff --git a/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240606/FindPersonByLastNameAndDateOfBirthTests.cs b/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240606/FindPersonByLastNameAndDateOfBirthTests.cs
index 758a570597..e3f68b9080 100644
--- a/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240606/FindPersonByLastNameAndDateOfBirthTests.cs
+++ b/TeachingRecordSystem/tests/TeachingRecordSystem.Api.IntegrationTests/V3/V20240606/FindPersonByLastNameAndDateOfBirthTests.cs
@@ -36,7 +36,7 @@ public async Task Get_ClientDoesNotHavePermission_ReturnsForbidden(string[] role
     }
 
     [Theory]
-    [InlineData("", "Invalid matching policy.")]
+    [InlineData("", "The value '' is invalid.")]
     [InlineData("BadFindBy", "The value 'BadFindBy' is not valid for FindBy.")]
     public async Task Get_InvalidFindBy_ReturnsError(string findBy, string expectedErrorMessage)
     {