diff --git a/CHANGELOG b/CHANGELOG
index ee42552eb47..35f96898e04 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -21,6 +21,7 @@
 * Cybersource: Add apple_pay with discover. [DustinHaefele] #5213
 * MercadoPago: Add idempotency key field [yunnydang] #5229
 * Adyen: Update split refund method [yunnydang] #5218
+* Adyen: Remove raw_error_message [almalee24] #5202
 
 == Version 1.137.0 (August 2, 2024)
 * Unlock dependency on `rexml` to allow fixing a CVE (#5181).
diff --git a/lib/active_merchant/billing/gateways/adyen.rb b/lib/active_merchant/billing/gateways/adyen.rb
index 39226f2d438..3f2c26d7e39 100644
--- a/lib/active_merchant/billing/gateways/adyen.rb
+++ b/lib/active_merchant/billing/gateways/adyen.rb
@@ -904,8 +904,6 @@ def message_from(action, response, options = {})
       end
 
       def authorize_message_from(response, options = {})
-        return raw_authorize_error_message(response) if options[:raw_error_message]
-
         if response['refusalReason'] && response['additionalData'] && (response['additionalData']['merchantAdviceCode'] || response['additionalData']['refusalReasonRaw'])
           "#{response['refusalReason']} | #{response['additionalData']['merchantAdviceCode'] || response['additionalData']['refusalReasonRaw']}"
         else
@@ -913,14 +911,6 @@ def authorize_message_from(response, options = {})
         end
       end
 
-      def raw_authorize_error_message(response)
-        if response['refusalReason'] && response['additionalData'] && response['additionalData']['refusalReasonRaw']
-          "#{response['refusalReason']} | #{response['additionalData']['refusalReasonRaw']}"
-        else
-          response['refusalReason'] || response['resultCode'] || response['message'] || response['result']
-        end
-      end
-
       def authorization_from(action, parameters, response)
         return nil if response['pspReference'].nil?
 
diff --git a/test/unit/gateways/adyen_test.rb b/test/unit/gateways/adyen_test.rb
index 43628d0827d..07c978d3ee9 100644
--- a/test/unit/gateways/adyen_test.rb
+++ b/test/unit/gateways/adyen_test.rb
@@ -383,15 +383,6 @@ def test_failed_authorise_mastercard
     assert_failure response
   end
 
-  def test_failed_authorise_mastercard_raw_error_message
-    @gateway.expects(:ssl_post).returns(failed_authorize_mastercard_response)
-
-    response = @gateway.send(:commit, 'authorise', {}, { raw_error_message: true })
-
-    assert_equal 'Refused | 01: Refer to card issuer', response.message
-    assert_failure response
-  end
-
   def test_successful_capture
     @gateway.expects(:ssl_post).returns(successful_capture_response)
     response = @gateway.capture(@amount, '7914775043909934')