diff --git a/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginError.java b/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginError.java
index 802f016235..9f5b575b81 100644
--- a/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginError.java
+++ b/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginError.java
@@ -107,6 +107,15 @@ public enum AppsmithPluginError implements BasePluginError {
             ErrorType.AUTHENTICATION_ERROR,
             "{0}",
             "{1}"),
+    PLUGIN_DATASOURCE_AUTHENTICATION_ERROR(
+            400,
+            AppsmithPluginErrorCode.PLUGIN_DATASOURCE_AUTHENTICATION_ERROR.getCode(),
+            "Invalid authentication credentials. Please check datasource configuration.",
+            AppsmithErrorAction.DEFAULT,
+            "Datasource authentication error",
+            ErrorType.DATASOURCE_CONFIGURATION_ERROR,
+            "{0}",
+            "{1}"),
     PLUGIN_DATASOURCE_ERROR(
             400,
             AppsmithPluginErrorCode.PLUGIN_DATASOURCE_ERROR.getCode(),
diff --git a/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginErrorCode.java b/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginErrorCode.java
index 7e6465e4ab..7e482eefa3 100644
--- a/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginErrorCode.java
+++ b/app/server/appsmith-interfaces/src/main/java/com/appsmith/external/exceptions/pluginExceptions/AppsmithPluginErrorCode.java
@@ -17,6 +17,7 @@ public enum AppsmithPluginErrorCode {
     PLUGIN_DATASOURCE_TIMEOUT_ERROR("PE-DSE-5004", "Timed out when connecting to datasource"),
     PLUGIN_QUERY_TIMEOUT_ERROR("PE-QRY-5000", "Timed out on query execution"),
     PLUGIN_AUTHENTICATION_ERROR("PE-ATH-5000", "Datasource authentication error"),
+    PLUGIN_DATASOURCE_AUTHENTICATION_ERROR("PE-ATH-4000", "Datasource authentication error"),
     PLUGIN_DATASOURCE_ERROR("PE-DSE-4000", "Datasource error"),
     PLUGIN_UQI_WHERE_CONDITION_UNKNOWN("PE-UQI-5000", "Where condition could not be parsed"),
     GENERIC_STALE_CONNECTION("PE-STC-5000", "Secondary stale connection error"),
diff --git a/app/server/appsmith-plugins/openAiPlugin/src/main/java/com/external/plugins/OpenAiPlugin.java b/app/server/appsmith-plugins/openAiPlugin/src/main/java/com/external/plugins/OpenAiPlugin.java
index 22acc5f477..dc181441e4 100644
--- a/app/server/appsmith-plugins/openAiPlugin/src/main/java/com/external/plugins/OpenAiPlugin.java
+++ b/app/server/appsmith-plugins/openAiPlugin/src/main/java/com/external/plugins/OpenAiPlugin.java
@@ -111,8 +111,8 @@ public class OpenAiPlugin extends BasePlugin {
 
                         if (HttpStatusCode.valueOf(401).isSameCodeAs(statusCode)) {
                             actionExecutionResult.setIsExecutionSuccess(false);
-                            actionExecutionResult.setErrorInfo(
-                                    new AppsmithPluginException(AppsmithPluginError.PLUGIN_AUTHENTICATION_ERROR));
+                            actionExecutionResult.setErrorInfo(new AppsmithPluginException(
+                                    AppsmithPluginError.PLUGIN_DATASOURCE_AUTHENTICATION_ERROR));
                             return Mono.just(actionExecutionResult);
                         }
 
@@ -183,8 +183,8 @@ public class OpenAiPlugin extends BasePlugin {
             return RequestUtils.makeRequest(httpMethod, uri, bearerTokenAuth, BodyInserters.empty())
                     .flatMap(responseEntity -> {
                         if (responseEntity.getStatusCode().is4xxClientError()) {
-                            return Mono.error(
-                                    new AppsmithPluginException(AppsmithPluginError.PLUGIN_AUTHENTICATION_ERROR));
+                            return Mono.error(new AppsmithPluginException(
+                                    AppsmithPluginError.PLUGIN_DATASOURCE_AUTHENTICATION_ERROR));
                         }
 
                         if (!responseEntity.getStatusCode().is2xxSuccessful()) {
@@ -237,12 +237,13 @@ public class OpenAiPlugin extends BasePlugin {
                         }
 
                         AppsmithPluginException error =
-                                new AppsmithPluginException(AppsmithPluginError.PLUGIN_AUTHENTICATION_ERROR);
+                                new AppsmithPluginException(AppsmithPluginError.PLUGIN_DATASOURCE_AUTHENTICATION_ERROR);
                         return new DatasourceTestResult(error.getMessage());
                     })
                     .onErrorResume(error -> {
                         if (!(error instanceof AppsmithPluginException)) {
-                            error = new AppsmithPluginException(AppsmithPluginError.PLUGIN_AUTHENTICATION_ERROR);
+                            error = new AppsmithPluginException(
+                                    AppsmithPluginError.PLUGIN_DATASOURCE_AUTHENTICATION_ERROR);
                         }
                         return Mono.just(new DatasourceTestResult(error.getMessage()));
                     });