diff --git a/src/Layers/W1/BaseApp/CRM/Duplicates/DuplicateManagement.Codeunit.al b/src/Layers/W1/BaseApp/CRM/Duplicates/DuplicateManagement.Codeunit.al
index d0de474a114..8cf4089d1eb 100644
--- a/src/Layers/W1/BaseApp/CRM/Duplicates/DuplicateManagement.Codeunit.al
+++ b/src/Layers/W1/BaseApp/CRM/Duplicates/DuplicateManagement.Codeunit.al
@@ -140,6 +140,7 @@ codeunit 5060 DuplicateManagement
         DuplContSearchString.SetRange("Contact Company No.", Cont."No.");
         if DuplContSearchString.Find('-') then
             repeat
+                DuplContSearchString2.ReadIsolation(IsolationLevel::ReadUncommitted);
                 DuplContSearchString2.SetCurrentKey("Field No.", "Part of Field", "Search String");
                 DuplContSearchString2.SetRange("Field No.", DuplContSearchString."Field No.");
                 DuplContSearchString2.SetRange("Part of Field", DuplContSearchString."Part of Field");