diff --git a/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt b/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
index f28b03292..4dff6d55a 100644
--- a/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
+++ b/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
@@ -121,6 +121,17 @@ class DocumentLevelMonitorRunner : MonitorRunner() {
                 throw IndexNotFoundException(docLevelMonitorInput.indices.joinToString(","))
             }
 
+            if (monitor.deleteQueryIndexInEveryRun == true &&
+                monitorCtx.docLevelMonitorQueries!!.docLevelQueryIndexExists(monitor.dataSources)
+            ) {
+                val ack = monitorCtx.docLevelMonitorQueries!!.deleteDocLevelQueryIndex(monitor.dataSources)
+                if (!ack) {
+                    logger.error(
+                        "Deletion of concrete queryIndex:${monitor.dataSources.queryIndex} is not ack'd! " +
+                            "for monitor ${monitor.id}"
+                    )
+                }
+            }
             monitorCtx.docLevelMonitorQueries!!.initDocLevelQueryIndex(monitor.dataSources)
             monitorCtx.docLevelMonitorQueries!!.indexDocLevelQueries(
                 monitor = monitor,
diff --git a/alerting/src/main/kotlin/org/opensearch/alerting/util/DocLevelMonitorQueries.kt b/alerting/src/main/kotlin/org/opensearch/alerting/util/DocLevelMonitorQueries.kt
index 3a0a11e91..412ec4b25 100644
--- a/alerting/src/main/kotlin/org/opensearch/alerting/util/DocLevelMonitorQueries.kt
+++ b/alerting/src/main/kotlin/org/opensearch/alerting/util/DocLevelMonitorQueries.kt
@@ -445,7 +445,7 @@ class DocLevelMonitorQueries(private val client: Client, private val clusterServ
             }
             bulkResponse.forEach { bulkItemResponse ->
                 if (bulkItemResponse.isFailed) {
-                    log.debug(bulkItemResponse.failureMessage)
+                    log.error(bulkItemResponse.failureMessage)
                 }
             }
         }