diff --git a/pandora_console/include/ajax/snmp_browser.ajax.php b/pandora_console/include/ajax/snmp_browser.ajax.php
index 858875c624..eb4d8e8b54 100644
--- a/pandora_console/include/ajax/snmp_browser.ajax.php
+++ b/pandora_console/include/ajax/snmp_browser.ajax.php
@@ -113,6 +113,17 @@ if (is_ajax()) {
             $output .= '</div>';
             $output .= '</div>';
 
+            // Dialog no agent selected.
+            $output .= '<div id="dialog_no_agents_selected" style="display:none" title="'.__('SNMP modules').'">';
+            $output .= '<div>';
+            $output .= "<div style='width:25%; float:left'><img style='padding-left:20px; padding-top:20px;' src='images/icono_error_mr.png'></div>";
+            $output .= "<div style='width:75%; float:left;'><h3><strong style='font-family:Verdana; font-size:13pt;'>ERROR</strong></h3>";
+            $output .= "<p style='font-family:Verdana; font-size:12pt;margin-bottom: 0px'>".__('Module must be applied to an agent or a policy').'</p>';
+            $output .= "<p id='error_text' style='font-family:Verdana; font-size:12pt;'></p>";
+            $output .= '</div>';
+            $output .= '</div>';
+            $output .= '</div>';
+
             echo $output;
         }
 
@@ -159,6 +170,11 @@ if (is_ajax()) {
             $id_target = explode(',', $id_items[0]);
         }
 
+        if (empty($id_items[0])) {
+            echo json_encode([0 => -1]);
+            exit;
+        }
+
         $snmp_extradata = get_parameter('snmp_extradata', '');
 
         if (!is_array($snmp_extradata)) {
diff --git a/pandora_console/include/javascript/pandora_snmp_browser.js b/pandora_console/include/javascript/pandora_snmp_browser.js
index ef746aa5f4..38864e2bf4 100644
--- a/pandora_console/include/javascript/pandora_snmp_browser.js
+++ b/pandora_console/include/javascript/pandora_snmp_browser.js
@@ -625,6 +625,20 @@ function snmp_browser_create_modules(module_target, return_post = true) {
     );
     $("input[name=create_modules_" + module_target + "]").addClass("sub spinn");
 
+    $("#dialog_error").on("dialogclose", function(event) {
+      $("input[name=create_modules_" + module_target + "]").removeClass(
+        "sub spinn"
+      );
+      $("input[name=create_modules_" + module_target + "]").addClass("sub add");
+    });
+
+    $("#dialog_success").on("dialogclose", function(event) {
+      $("input[name=create_modules_" + module_target + "]").removeClass(
+        "sub spinn"
+      );
+      $("input[name=create_modules_" + module_target + "]").addClass("sub add");
+    });
+
     $.ajax({
       method: "post",
       url: "ajax.php",
diff --git a/pandora_console/operation/snmpconsole/snmp_browser.php b/pandora_console/operation/snmpconsole/snmp_browser.php
index 8db508da27..fd0067f24f 100644
--- a/pandora_console/operation/snmpconsole/snmp_browser.php
+++ b/pandora_console/operation/snmpconsole/snmp_browser.php
@@ -241,20 +241,41 @@ function snmp_show_result_message(data) {
     if (dato.length !== 0) {
       $("#error_text").text("");
 
-      dato.forEach(function (valor, indice, array) {
-        $("#error_text").append("<br/>" + valor);
-      });
-      $("#dialog_error").dialog({
-        resizable: true,
-        draggable: true,
-        modal: true,
-        height: 300,
-        width: 500,
-        overlay: {
-          opacity: 0.5,
-          background: "black"
-        }
-      });
+      if (dato[0] === -1) {
+          $("#dialog_no_agents_selected").dialog({
+            resizable: true,
+            draggable: true,
+            modal: true,
+            height: 300,
+            width: 500,
+            close: function(e, ui) {
+              $("input[name=create_modules_network_component]").removeClass("sub spinn");
+              $("input[name=create_modules_network_component]").addClass("sub add");
+            },
+            overlay: {
+              opacity: 0.5,
+              background: "black"
+            }
+          });
+      } else {
+          $("#error_text").text("");
+
+          dato.forEach(function (valor, indice, array) {
+            $("#error_text").append("<br/>" + valor);
+          });
+          $("#dialog_error").dialog({
+            resizable: true,
+            draggable: true,
+            modal: true,
+            height: 300,
+            width: 500,
+            overlay: {
+              opacity: 0.5,
+              background: "black"
+            }
+          });
+      }
+
     } else {
       $("#dialog_success").dialog({
         resizable: true,