From b8ecc17140f93e9b528445609a5ea185b87e30ca Mon Sep 17 00:00:00 2001
From: Elitsa Marinovska <elm@umbraco.dk>
Date: Thu, 14 Oct 2021 13:41:56 +0200
Subject: [PATCH] Pointing the actual reason for invalidating composition

---
 src/Umbraco.Web/Editors/ContentTypeControllerBase.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web/Editors/ContentTypeControllerBase.cs b/src/Umbraco.Web/Editors/ContentTypeControllerBase.cs
index e4a5b2e417..60e10313ca 100644
--- a/src/Umbraco.Web/Editors/ContentTypeControllerBase.cs
+++ b/src/Umbraco.Web/Editors/ContentTypeControllerBase.cs
@@ -499,7 +499,7 @@ namespace Umbraco.Web.Editors
                 var group = contentTypeSave.Groups.Single(x => x.Alias == propertyGroupAlias);
                 var groupIndex = contentTypeSave.Groups.IndexOf(group);
                 var key = $"Groups[{groupIndex}].Name";
-                ModelState.AddModelError(key, "Duplicate property group aliases are not allowed between compositions");
+                ModelState.AddModelError(key, "Same alias for tab and group is not allowed between compositions");
             }
         }