diff --git a/src/rpc/Errors.cpp b/src/rpc/Errors.cpp
index aa0be8fdb..e0aa79027 100644
--- a/src/rpc/Errors.cpp
+++ b/src/rpc/Errors.cpp
@@ -126,7 +126,6 @@ getErrorInfo(ClioError code)
         {.code = ClioError::RpcMalformedAuthorizedCredentials,
          .error = "malformedAuthorizedCredentials",
          .message = "Malformed authorized credentials."},
-        {.code = ClioError::RpcEntryNotFound, .error = "entryNotFound", .message = "Entry Not Found."},
         // special system errors
         {.code = ClioError::RpcInvalidApiVersion, .error = JS(invalid_API_version), .message = "Invalid API version."},
         {.code = ClioError::RpcCommandIsMissing,
diff --git a/src/rpc/Errors.hpp b/src/rpc/Errors.hpp
index 0aaa78308..5dfa21ce2 100644
--- a/src/rpc/Errors.hpp
+++ b/src/rpc/Errors.hpp
@@ -43,7 +43,8 @@ enum class ClioError {
     RpcFieldNotFoundTransaction = 5006,
     RpcMalformedOracleDocumentId = 5007,
     RpcMalformedAuthorizedCredentials = 5008,
-    RpcEntryNotFound = 5009,
+    // NOTE: RpcEntryNotFound is replaced with RippledError::rpcENTRY_NOT_FOUND
+    // RpcEntryNotFound = 5009,
 
     // special system errors start with 6000
     RpcInvalidApiVersion = 6000,
diff --git a/src/rpc/handlers/VaultInfo.cpp b/src/rpc/handlers/VaultInfo.cpp
index ad4074594..64e9a2d72 100644
--- a/src/rpc/handlers/VaultInfo.cpp
+++ b/src/rpc/handlers/VaultInfo.cpp
@@ -107,7 +107,7 @@ VaultInfoHandler::process(VaultInfoHandler::Input const& input, Context const& c
                     sharedPtrBackend_->fetchLedgerObject(accountKeylet.key, lgrInfo.seq, ctx.yield);
 
                 if (!accountLedgerObject)
-                    return std::unexpected{Status{ClioError::RpcEntryNotFound}};
+                    return std::unexpected{Status{RippledError::rpcENTRY_NOT_FOUND}};
             }
 
             return ripple::keylet::vault(*accountID, *input.tnxSequence);
@@ -116,7 +116,7 @@ VaultInfoHandler::process(VaultInfoHandler::Input const& input, Context const& c
         if (nodeIndex.parseHex(*input.vaultID))
             return ripple::keylet::vault(nodeIndex);
 
-        return std::unexpected{Status{ClioError::RpcEntryNotFound}};
+        return std::unexpected{Status{RippledError::rpcENTRY_NOT_FOUND}};
     }();
 
     if (not vaultKeylet.has_value())
@@ -127,7 +127,7 @@ VaultInfoHandler::process(VaultInfoHandler::Input const& input, Context const& c
         sharedPtrBackend_->fetchLedgerObject(vaultKeylet.value().key, lgrInfo.seq, ctx.yield);
 
     if (not vaultLedgerObject)
-        return Error{Status{ClioError::RpcEntryNotFound, "vault object not found."}};
+        return Error{Status{RippledError::rpcENTRY_NOT_FOUND, "vault object not found."}};
 
     ripple::STLedgerEntry const vaultSle{
         ripple::SerialIter{vaultLedgerObject->data(), vaultLedgerObject->size()}, vaultKeylet.value().key
@@ -137,7 +137,7 @@ VaultInfoHandler::process(VaultInfoHandler::Input const& input, Context const& c
     auto const issuanceObject = sharedPtrBackend_->fetchLedgerObject(issuanceKeylet, lgrInfo.seq, ctx.yield);
 
     if (not issuanceObject)
-        return Error{Status{ClioError::RpcEntryNotFound, "issuance object not found."}};
+        return Error{Status{RippledError::rpcENTRY_NOT_FOUND, "issuance object not found."}};
 
     ripple::STLedgerEntry const issuanceSle{
         ripple::SerialIter{issuanceObject->data(), issuanceObject->size()}, issuanceKeylet
diff --git a/src/web/impl/ErrorHandling.hpp b/src/web/impl/ErrorHandling.hpp
index fff6589d6..30290773b 100644
--- a/src/web/impl/ErrorHandling.hpp
+++ b/src/web/impl/ErrorHandling.hpp
@@ -91,7 +91,6 @@ public:
                     case rpc::ClioError::RpcFieldNotFoundTransaction:
                     case rpc::ClioError::RpcMalformedOracleDocumentId:
                     case rpc::ClioError::RpcMalformedAuthorizedCredentials:
-                    case rpc::ClioError::RpcEntryNotFound:
                     case rpc::ClioError::EtlConnectionError:
                     case rpc::ClioError::EtlRequestError:
                     case rpc::ClioError::EtlRequestTimeout:
diff --git a/src/web/ng/impl/ErrorHandling.cpp b/src/web/ng/impl/ErrorHandling.cpp
index 215cef225..30d3729d1 100644
--- a/src/web/ng/impl/ErrorHandling.cpp
+++ b/src/web/ng/impl/ErrorHandling.cpp
@@ -105,7 +105,6 @@ ErrorHelper::makeError(rpc::Status const& err) const
             case rpc::ClioError::RpcFieldNotFoundTransaction:
             case rpc::ClioError::RpcMalformedOracleDocumentId:
             case rpc::ClioError::RpcMalformedAuthorizedCredentials:
-            case rpc::ClioError::RpcEntryNotFound:
             case rpc::ClioError::EtlConnectionError:
             case rpc::ClioError::EtlRequestError:
             case rpc::ClioError::EtlRequestTimeout:
diff --git a/tests/unit/rpc/handlers/VaultInfoTests.cpp b/tests/unit/rpc/handlers/VaultInfoTests.cpp
index a7aa80f33..cd5160776 100644
--- a/tests/unit/rpc/handlers/VaultInfoTests.cpp
+++ b/tests/unit/rpc/handlers/VaultInfoTests.cpp
@@ -71,6 +71,7 @@ struct VaultInfoParamTestCaseBundle {
     std::string testName;
     std::string testJson;
     std::string expectedError;
+    CombinedError expectedErrorCode;
     std::string expectedErrorMessage;
 };
 
@@ -86,6 +87,7 @@ generateTestValuesForParametersTest()
                 "idk": "idk"
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         },
         VaultInfoParamTestCaseBundle{
@@ -94,6 +96,7 @@ generateTestValuesForParametersTest()
                 "seq": 4
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         },
         VaultInfoParamTestCaseBundle{
@@ -102,6 +105,7 @@ generateTestValuesForParametersTest()
                 "owner": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh"
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         },
         VaultInfoParamTestCaseBundle{
@@ -111,6 +115,7 @@ generateTestValuesForParametersTest()
                 "seq": "asdf"
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         },
         VaultInfoParamTestCaseBundle{
@@ -120,6 +125,7 @@ generateTestValuesForParametersTest()
                 "seq": 3
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "OwnerNotHexString"
         },
         VaultInfoParamTestCaseBundle{
@@ -129,6 +135,7 @@ generateTestValuesForParametersTest()
                 "seq": 3
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "OwnerNotHexString"
         },
         VaultInfoParamTestCaseBundle{
@@ -137,6 +144,7 @@ generateTestValuesForParametersTest()
                 "vault_id": 3
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         },
         VaultInfoParamTestCaseBundle{
@@ -145,6 +153,7 @@ generateTestValuesForParametersTest()
                 "vault_id": "idk"
             })JSON",
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         },
         VaultInfoParamTestCaseBundle{
@@ -158,6 +167,7 @@ generateTestValuesForParametersTest()
                 kACCOUNT
             ),
             .expectedError = "malformedRequest",
+            .expectedErrorCode = ClioError::RpcMalformedRequest,
             .expectedErrorMessage = "Malformed request."
         }
     };
@@ -181,6 +191,10 @@ TEST_P(VaultInfoParameterTest, InvalidParams)
 
         auto const err = rpc::makeError(output.result.error());
         EXPECT_EQ(err.at("error").as_string(), testBundle.expectedError);
+        EXPECT_EQ(
+            err.at("error_code").as_uint64(),
+            std::visit([](auto code) { return static_cast<uint32_t>(code); }, testBundle.expectedErrorCode)
+        );
         EXPECT_EQ(err.at("error_message").as_string(), testBundle.expectedErrorMessage);
     });
 }
@@ -208,6 +222,8 @@ TEST_F(RPCVaultInfoHandlerTest, InputHasOwnerButNotFoundResultsInError)
         ASSERT_FALSE(output);
         auto const err = rpc::makeError(output.result.error());
         EXPECT_EQ(err.at("error").as_string(), "entryNotFound");
+        EXPECT_EQ(err.at("error_code").as_uint64(), rpc::RippledError::rpcENTRY_NOT_FOUND);
+        EXPECT_EQ(err.at("error_message").as_string(), "Entry not found.");
     });
 }
 
@@ -237,6 +253,8 @@ TEST_F(RPCVaultInfoHandlerTest, VaultIDFailsVaultDeserializationReturnsEntryNotF
         ASSERT_FALSE(output);
         auto const err = rpc::makeError(output.result.error());
         EXPECT_EQ(err.at("error").as_string(), "entryNotFound");
+        EXPECT_EQ(err.at("error_code").as_uint64(), rpc::RippledError::rpcENTRY_NOT_FOUND);
+        EXPECT_EQ(err.at("error_message").as_string(), "vault object not found.");
     });
 }
 
@@ -277,6 +295,8 @@ TEST_F(RPCVaultInfoHandlerTest, MissingIssuanceObject)
         ASSERT_FALSE(output);
         auto const err = rpc::makeError(output.result.error());
         EXPECT_EQ(err.at("error").as_string(), "entryNotFound");
+        EXPECT_EQ(err.at("error_code").as_uint64(), rpc::RippledError::rpcENTRY_NOT_FOUND);
+        EXPECT_EQ(err.at("error_message").as_string(), "issuance object not found.");
     });
 }