diff --git a/common/errorCodes.js b/common/errorCodes.js
index 993d2a2e..071f4dd0 100644
--- a/common/errorCodes.js
+++ b/common/errorCodes.js
@@ -1,4 +1,5 @@
 module.exports = {
 	ERR_MISSING_PASSPHRASE: 'ERR_MISSING_PASSPHRASE',
 	ERR_OSSL_BAD_DECRYPT: 'ERR_OSSL_BAD_DECRYPT',
+	ERR_INVALID_USERNAME: '390144',
 };
diff --git a/common/getKeyPairConnectionErrorMessageByCode.js b/common/getKeyPairConnectionErrorMessageByCode.js
new file mode 100644
index 00000000..86ad8a83
--- /dev/null
+++ b/common/getKeyPairConnectionErrorMessageByCode.js
@@ -0,0 +1,14 @@
+const errorMessages = require('./errorMessages.js');
+const errorCodes = require('./errorCodes.js');
+
+const ERROR_CODE_TO_MESSAGE = {
+	[errorCodes.ERR_MISSING_PASSPHRASE]: errorMessages.KEY_PAIR_ERROR,
+	[errorCodes.ERR_OSSL_BAD_DECRYPT]: errorMessages.KEY_PAIR_ERROR,
+	[errorCodes.ERR_INVALID_USERNAME]: errorMessages.KEY_PAIR_ERROR,
+};
+
+const getKeyPairConnectionErrorMessageByCode = code => ERROR_CODE_TO_MESSAGE[code];
+
+module.exports = {
+	getKeyPairConnectionErrorMessageByCode,
+};
diff --git a/forward_engineering/helpers/handleError.js b/forward_engineering/helpers/handleError.js
index e6992289..6aec6489 100644
--- a/forward_engineering/helpers/handleError.js
+++ b/forward_engineering/helpers/handleError.js
@@ -1,12 +1,12 @@
-const errorMessages = require('../../common/errorMessages.js');
-const errorCodes = require('../../common/errorCodes.js');
+const { getKeyPairConnectionErrorMessageByCode } = require('../../common/getKeyPairConnectionErrorMessageByCode.js');
 
 const handleError = (logger, error, callback) => {
 	logger.log('error', error, 'Error when applying to instance');
 
-	if (error.code === errorCodes.ERR_MISSING_PASSPHRASE || error.code === errorCodes.ERR_OSSL_BAD_DECRYPT) {
+	const keyPairConnectionErrorMessage = getKeyPairConnectionErrorMessageByCode(error.code);
+	if (keyPairConnectionErrorMessage) {
 		return callback({
-			message: errorMessages.KEY_PAIR_ERROR,
+			message: keyPairConnectionErrorMessage,
 			type: 'simpleError',
 		});
 	}
diff --git a/reverse_engineering/api.js b/reverse_engineering/api.js
index aecacee5..38533e78 100644
--- a/reverse_engineering/api.js
+++ b/reverse_engineering/api.js
@@ -5,6 +5,7 @@ const snowflakeHelper = require('./helpers/snowflakeHelper');
 const ssoHelper = require('./helpers/ssoHelper');
 const errorMessages = require('../common/errorMessages.js');
 const errorCodes = require('../common/errorCodes.js');
+const { handleError } = require('./helpers/handleError.js');
 
 const connect = async (connectionInfo, logger, cb) => {
 	logger.clear();
@@ -271,21 +272,6 @@ const getSampleDocSize = (count, recordSamplingSettings) => {
 	return Math.min(limit, recordSamplingSettings.maxValue);
 };
 
-const handleError = (logger, error, cb) => {
-	logger.log('error', { error }, 'Reverse Engineering error');
-
-	if (error.code === errorCodes.ERR_MISSING_PASSPHRASE || error.code === errorCodes.ERR_OSSL_BAD_DECRYPT) {
-		return cb({
-			message: errorMessages.KEY_PAIR_ERROR,
-			type: 'simpleError',
-		});
-	}
-
-	const message = _.isString(error) ? error : _.get(error, 'message', 'Reverse Engineering error');
-
-	return cb({ message });
-};
-
 module.exports = {
 	connect,
 	disconnect,
diff --git a/reverse_engineering/helpers/handleError.js b/reverse_engineering/helpers/handleError.js
new file mode 100644
index 00000000..7ef119cd
--- /dev/null
+++ b/reverse_engineering/helpers/handleError.js
@@ -0,0 +1,25 @@
+const { getKeyPairConnectionErrorMessageByCode } = require('../../common/getKeyPairConnectionErrorMessageByCode.js');
+
+const handleError = (logger, error, cb) => {
+	logger.log('error', { error }, 'Reverse Engineering error');
+
+	const keyPairConnectionErrorMessage = getKeyPairConnectionErrorMessageByCode(error.code);
+	if (keyPairConnectionErrorMessage) {
+		return cb({
+			message: keyPairConnectionErrorMessage,
+			type: 'simpleError',
+		});
+	}
+
+	if (typeof error === 'string') {
+		return cb({ message: error });
+	}
+
+	const message = error?.message ?? 'Reverse Engineering error';
+
+	return cb({ message });
+};
+
+module.exports = {
+	handleError,
+};