diff --git a/application/cmdbabstract.class.inc.php b/application/cmdbabstract.class.inc.php
index 1563c7a22..4cf051859 100644
--- a/application/cmdbabstract.class.inc.php
+++ b/application/cmdbabstract.class.inc.php
@@ -5342,6 +5342,20 @@ EOF
 		$sJSOk = json_encode(Dict::S('UI:Button:Ok'));
 		$oPage->add_ready_script(
 			<<<JS
+		// Prepare reusable modal
+		const oOwnershipLockModal = $('<div></div>').dialog({
+			title: $sJSTitle,
+			modal: true,
+			autoOpen: false,
+			minWidth: 600,
+			buttons:[{
+				text: $sJSOk,
+				class: 'ibo-is-alternative',
+				click: function() { $(this).dialog('close'); }
+			}],
+			close: function() { $(this).dialog('close'); }
+		});
+		// Start periodic handler
 		let hOwnershipLockHandlerInterval = window.setInterval(function() {
 			if (window.bInSubmit || window.bInCancel) return;
 			
@@ -5351,18 +5365,8 @@ EOF
 					if ($('.lock_owned').length == 0)
 					{
 						$('.ui-layout-content').prepend('<div class="header_message message_error lock_owned">'+data.message+'</div>');
-						$('<div>'+data.popup_message+'</div>').dialog({
-							title: $sJSTitle,
-							modal: true,
-							autoOpen: true,
-							minWidth: 600,
-							buttons:[{
-								text: {$sJSOk},
-								class: 'ibo-is-alternative',
-								click: function() { $(this).dialog('close'); }
-							}],
-							close: function() { $(this).remove(); }
-						});
+						oOwnershipLockModal.text(data.popup_message);
+						oOwnershipLockModal.dialog('open');
 					}
 					$('.object-details form .ibo-toolbar .ibo-button:not([name="cancel"])').prop('disabled', true);
 					clearInterval(hOwnershipLockHandlerInterval);
@@ -5372,18 +5376,8 @@ EOF
 					if ($('.lock_owned').length == 0)
 					{
 						$('.ui-layout-content').prepend('<div class="header_message message_error lock_owned">'+data.message+'</div>');
-						$('<div>'+data.popup_message+'</div>').dialog({
-							title: $sJSTitle,
-							modal: true,
-							autoOpen: true,
-							minWidth: 600,
-							buttons:[{
-								text: $sJSOk,
-								class: 'ibo-is-alternative',
-								click: function() { $(this).dialog('close'); }
-							}],
-							close: function() { $(this).remove(); }
-						});
+						oOwnershipLockModal.text(data.popup_message);
+						oOwnershipLockModal.dialog('open');
 					}
 					$('.object-details form .ibo-toolbar .ibo-button:not([name="cancel"])').prop('disabled', true);
 					clearInterval(hOwnershipLockHandlerInterval);