diff --git a/config/DO_Dashboard_Config.xlsx b/config/DO_Dashboard_Config.xlsx
index 6f2632d..e473fbd 100644
Binary files a/config/DO_Dashboard_Config.xlsx and b/config/DO_Dashboard_Config.xlsx differ
diff --git a/do_dashboard.py b/do_dashboard.py
index f39542d..9869fd8 100644
--- a/do_dashboard.py
+++ b/do_dashboard.py
@@ -843,6 +843,33 @@ def _execute_custom_function(function_name, args, output_request):
 
         return "undefined"
 
+    elif function_name == "concat":
+        # Args: [separator, field_name_1, field_name_2, ..., field_name_n]
+        #   separator    : string to insert between concatenated values
+        #   field_name_* : names of already-computed fields in output_request to concatenate
+        #                  undefined/None values are silently skipped
+        if not args or len(args) < 2:
+            return "$$$$ Argument Error: concat requires at least 2 arguments (separator + 1 field)"
+
+        separator = args[0]
+        if not isinstance(separator, str):
+            return "$$$$ Argument Error: concat separator (arg1) must be a string"
+
+        field_names = args[1:]
+        parts = []
+        all_undefined = True
+
+        for field_name in field_names:
+            value = get_value_from_request(output_request, field_name)
+            if value is not None and value != "undefined":
+                all_undefined = False
+                parts.append(str(value))
+
+        if all_undefined:
+            return "undefined"
+
+        return separator.join(parts)
+
     return f"$$$$ Unknown Custom Function: {function_name}"
 
 
diff --git a/do_dashboard_quality_checks.py b/do_dashboard_quality_checks.py
index 62227b3..4537ac1 100644
--- a/do_dashboard_quality_checks.py
+++ b/do_dashboard_quality_checks.py
@@ -674,15 +674,15 @@ def non_regression_check(output_requests, old_requests_filename):
 
             checked_fields = [(f[0], f[1], f[2], f[3]) for f in all_fields_list if f[4]]
 
-            inclusion_matches = False
+            request_matches = False
             if bloc_scope == "all":
                 if len(changed_fields) > 0 and len(checked_fields) == len(changed_fields):
-                    inclusion_matches = True
+                    request_matches = True
             else:  # bloc_scope == "any"
                 if len(checked_fields) > 0:
-                    inclusion_matches = True
+                    request_matches = True
 
-            if inclusion_matches:
+            if request_matches:
                 matching_requests_count += 1
                 if debug_mode and checked_fields:
                     field_changes = [(f"{gn}.{fn}", ov, nv) for gn, fn, ov, nv in checked_fields]