diff --git a/config/locales/en.yml b/config/locales/en.yml
index d2cf7ba91..33eae4415 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -16,5 +16,3 @@ en:
       website: "must be a valid URL"
     invitation:
       email_address: "'%<value>s' is invalid"
-    school_student:
-      not_empty: "You must supply a %{field}"
diff --git a/lib/concepts/school_student/create.rb b/lib/concepts/school_student/create.rb
index 22ba9b1fc..0d4d3925c 100644
--- a/lib/concepts/school_student/create.rb
+++ b/lib/concepts/school_student/create.rb
@@ -9,7 +9,7 @@ def call(school:, school_student_params:, token:)
         response
       rescue StandardError => e
         Sentry.capture_exception(e)
-        response[:error] = "Error creating school student: #{e}"
+        response[:error] = e.to_s
         response
       end
 
diff --git a/lib/concepts/school_student/create_batch.rb b/lib/concepts/school_student/create_batch.rb
index e4074af2e..a1048e75f 100644
--- a/lib/concepts/school_student/create_batch.rb
+++ b/lib/concepts/school_student/create_batch.rb
@@ -30,7 +30,7 @@ def call(school:, school_students_params:, token:, user_id:)
         response
       rescue StandardError => e
         Sentry.capture_exception(e)
-        response[:error] = "Error creating school students: #{e}"
+        response[:error] = e.to_s
         response[:error_type] = :standard_error
         response
       end
@@ -65,14 +65,9 @@ def decrypt_students(students)
       def handle_student422_error(errors)
         formatted_errors = errors.each_with_object({}) do |error, hash|
           username = error['username'] || error['path']
-          field = error['path'].split('.').last
 
           hash[username] ||= []
-          hash[username] << I18n.t(
-            "validations.school_student.#{error['errorCode'].underscore}",
-            field:,
-            default: error['message']
-          )
+          hash[username] << (error['errorCode'] || error['message'])
 
           # Ensure uniqueness to avoid repeat errors with duplicate usernames
           hash[username] = hash[username].uniq
diff --git a/lib/concepts/school_student/update.rb b/lib/concepts/school_student/update.rb
index 2a5b8742f..67f2acdd4 100644
--- a/lib/concepts/school_student/update.rb
+++ b/lib/concepts/school_student/update.rb
@@ -9,7 +9,7 @@ def call(school:, student_id:, school_student_params:, token:)
         response
       rescue StandardError => e
         Sentry.capture_exception(e)
-        response[:error] = "Error updating school student: #{e}"
+        response[:error] = e.to_s
         response
       end
 
diff --git a/lib/profile_api_client.rb b/lib/profile_api_client.rb
index 4d9892313..f3af52362 100644
--- a/lib/profile_api_client.rb
+++ b/lib/profile_api_client.rb
@@ -18,7 +18,7 @@ class Student422Error < StandardError
     def initialize(errors)
       @errors = errors
       if errors.is_a?(Hash)
-        super(errors['message'])
+        super(errors['errorCode'] || errors['message'])
       else
         super()
       end
diff --git a/spec/concepts/school_student/create_batch_spec.rb b/spec/concepts/school_student/create_batch_spec.rb
index 4ec03ec04..436ffe46e 100644
--- a/spec/concepts/school_student/create_batch_spec.rb
+++ b/spec/concepts/school_student/create_batch_spec.rb
@@ -92,7 +92,7 @@
     it 'returns the error message in the operation response' do
       response = described_class.call(school:, school_students_params:, token:, user_id:)
       error_message = response[:error]
-      expect(error_message).to match(/Error creating school students: Decryption failed: iv must be 16 bytes/)
+      expect(error_message).to match(/Decryption failed: iv must be 16 bytes/)
     end
 
     it 'sent the exception to Sentry' do
@@ -106,10 +106,10 @@
       stub_profile_api_create_school_students_validation_error
     end
 
-    it 'returns the expected formatted errors' do
+    it 'returns the expected error codes' do
       response = described_class.call(school:, school_students_params:, token:, user_id:)
       expect(response[:error]).to eq(
-        { 'student-to-create' => ['Username must be unique in the batch data', 'Password is too simple (it should not be easily guessable, <a href="https://my.raspberrypi.org/password-help">need password help?</a>)', 'You must supply a name'], 'another-student-to-create-2' => ['Password must be at least 8 characters', 'You must supply a name'] }
+        { 'student-to-create' => %w[isUniqueInBatch isComplex notEmpty], 'another-student-to-create-2' => %w[minLength notEmpty] }
       )
     end
   end
diff --git a/spec/concepts/school_student/create_spec.rb b/spec/concepts/school_student/create_spec.rb
index 17ef3807b..4d2d87c5a 100644
--- a/spec/concepts/school_student/create_spec.rb
+++ b/spec/concepts/school_student/create_spec.rb
@@ -95,7 +95,7 @@
 
     it 'adds a useful error message' do
       response = described_class.call(school:, school_student_params:, token:)
-      expect(response[:error]).to eq("Error creating school student: something's up with the username")
+      expect(response[:error]).to eq("something's up with the username")
     end
   end
 
@@ -107,7 +107,7 @@
 
     it 'adds a useful error message' do
       response = described_class.call(school:, school_student_params:, token:)
-      expect(response[:error]).to eq('Error creating school student: Student not created in Profile API (status code 401)')
+      expect(response[:error]).to eq('Student not created in Profile API (status code 401)')
     end
   end
 end
diff --git a/spec/features/school_student/creating_a_batch_of_school_students_spec.rb b/spec/features/school_student/creating_a_batch_of_school_students_spec.rb
index eabb536b1..9778f3d96 100644
--- a/spec/features/school_student/creating_a_batch_of_school_students_spec.rb
+++ b/spec/features/school_student/creating_a_batch_of_school_students_spec.rb
@@ -101,7 +101,7 @@
   it 'responds 422 Unprocessable Entity with a suitable message when params are invalid' do
     post("/api/schools/#{school.id}/students/batch", headers:, params: bad_params)
     expect(response).to have_http_status(:unprocessable_entity)
-    expect(response.body).to include('Error creating school students: Decryption failed: iv must be 16 bytes')
+    expect(response.body).to include('Decryption failed: iv must be 16 bytes')
   end
   # rubocop:enable RSpec/MultipleExpectations
 
@@ -110,7 +110,7 @@
     stub_profile_api_create_school_students_validation_error
     post("/api/schools/#{school.id}/students/batch", headers:, params:)
     expect(response).to have_http_status(:unprocessable_entity)
-    expect(response.body).to eq('{"error":{"student-to-create":["Username must be unique in the batch data","Password is too simple (it should not be easily guessable, \\u003ca href=\"https://my.raspberrypi.org/password-help\"\\u003eneed password help?\\u003c/a\\u003e)","You must supply a name"],"another-student-to-create-2":["Password must be at least 8 characters","You must supply a name"]},"error_type":"validation_error"}')
+    expect(response.body).to eq('{"error":{"student-to-create":["isUniqueInBatch","isComplex","notEmpty"],"another-student-to-create-2":["minLength","notEmpty"]},"error_type":"validation_error"}')
   end
   # rubocop:enable RSpec/MultipleExpectations