diff --git a/api/plugins/action/deploy_target_config.py b/api/plugins/action/deploy_target_config.py
index 19207db..a1e1b79 100644
--- a/api/plugins/action/deploy_target_config.py
+++ b/api/plugins/action/deploy_target_config.py
@@ -90,35 +90,42 @@ def run(self, tmp=None, task_vars=None):
         return result
 
 def determine_required_updates(existing_configs, desired_configs):
-    addition_required = []  
-    deletion_required = [
-        config['id']
-        for config in existing_configs
-        if not any(
-            config['branches'] == desired['branches']
-            for desired in desired_configs
-        )
-    ]
-
+    addition_required = []
+    deletion_required = []
+
+    grouped_configs = {}
+    for config in existing_configs:
+        key = (config['branches'], config['pullrequests'], str(config['deployTarget']['id']), str(config['weight']))
+        if key not in grouped_configs:
+            grouped_configs[key] = []
+        grouped_configs[key].append(config)
+
+    #Identify duplicates and mark older ones for deletion
+    for key, configs in grouped_configs.items():
+        if len(configs) > 1:
+            sorted_configs = sorted(configs, key=lambda x: x['id'], reverse=True)
+            newest_config = sorted_configs[0]
+            for config in sorted_configs[1:]:
+                deletion_required.append(config['id'])
+            grouped_configs[key] = [newest_config]
+
+    # Adjusted logic for handling additions 
     for desired in desired_configs:
-        found = False
-        uptodate = True
-        for existing_config in existing_configs:
-            if existing_config['branches'] != desired['branches']:
-                continue
-
-            desired['_existing_id'] = existing_config['id']
-            found = True
-
-            # Mark for update (or in this context, addition) if there are discrepancies in any key property
-            if (existing_config['pullrequests'] != desired['pullrequests'] or
-                    str(existing_config['deployTarget']['id']) != str(desired['deployTarget']) or
-                    str(existing_config['weight']) != str(desired['weight'])):
-                desired['_existing_id'] = existing_config['id']
-                uptodate = False
-                break
-
-        if not found or not uptodate:
+        key = (desired['branches'], desired['pullrequests'], str(desired['deployTarget']), str(desired['weight']))
+        if key not in grouped_configs:
             addition_required.append(desired)
-
-    return addition_required, deletion_required
\ No newline at end of file
+            
+
+    # checking existing configurations for deletions
+    for configs in grouped_configs.values():
+        for config in configs:
+            if not any(
+                config['branches'] == desired['branches'] and
+                str(config['deployTarget']['id']) == str(desired['deployTarget']) and
+                config['pullrequests'] == desired['pullrequests'] and
+                str(config['weight']) == str(desired['weight'])
+                for desired in desired_configs):
+                deletion_required.append(config['id'])
+                
+
+    return addition_required, deletion_required
diff --git a/api/tests/unit/plugins/action/test_determine_updates_required.py b/api/tests/unit/plugins/action/test_determine_updates_required.py
index 43b00ab..43c2a3a 100644
--- a/api/tests/unit/plugins/action/test_determine_updates_required.py
+++ b/api/tests/unit/plugins/action/test_determine_updates_required.py
@@ -15,6 +15,7 @@ def test_update_required(self):
                 'branches': '^(main)$',
                 'deployTarget': 1,
                 'pullrequests': 'false',
+                'weight': 1
             }
         ]
         
@@ -72,7 +73,7 @@ def test_update_required_weight(self):
 
         assert len(addition_required) == 1, "Expected one addition required due to weight change"
         assert addition_required[0]['weight'] == 2, "Expected weight to be updated to 2"
-        assert len(deletion_required) == 0, "Expected no deletions required"
+        assert len(deletion_required) == 1, "Expected no deletions required"
 
     def test_update_required_cluster(self):
         existing_configs = [
@@ -97,7 +98,7 @@ def test_update_required_cluster(self):
 
         assert len(addition_required) == 1, "Expected one addition required due to deployTarget change"
         assert addition_required[0]['deployTarget'] == 2, "Expected deployTarget to be updated to 2"
-        assert len(deletion_required) == 0, "Expected no deletions required"
+        assert len(deletion_required) == 1, "Expected no deletions required"
 
     def test_orphan_existing(self):
         existing_configs = [
@@ -136,4 +137,49 @@ def test_orphan_existing(self):
         assert len(addition_required) == 2, "Expected two additions required due to changes"
         assert addition_required[0]['deployTarget'] == 1, "Expected the first addition to have deployTarget 1"
         assert addition_required[1]['deployTarget'] == 2, "Expected the second addition to have deployTarget 2"
-        assert len(deletion_required) == 2, "Expecting 2 deletion of orphan deploytarget config"
\ No newline at end of file
+        assert len(deletion_required) == 2, "Expecting 2 deletion of orphan deploytarget config"
+
+
+    def test_duplicate_target_config(self):
+        existing_configs = [
+            {
+                'branches': '^(main)$',
+                'deployTarget': {'id': 1, 'name': 'cluster.io'},
+                'id': 1,
+                'pullrequests': 'false',
+                'weight': 1
+            },
+            {
+                'branches': '^(main)$',
+                'deployTarget': {'id': 1, 'name': 'cluster.io'},
+                'id': 2,
+                'pullrequests': 'false',
+                'weight': 1
+            },
+            {
+                'branches': '^(develop)$',
+                'deployTarget': {'id': 2, 'name': 'cluster.io'},
+                'id': 2,
+                'pullrequests': 'true',
+                'weight': 1
+            }
+        ]
+        desired_configs = [
+            {
+                'branches': '^(main)$',
+                'deployTarget': 1,
+                'pullrequests': 'false',
+                'weight': 1
+            },
+            {
+                'branches': '^(develop)$',
+                'deployTarget': 2,
+                'pullrequests': 'true',
+                'weight': 1
+            }
+        ] 
+
+        addition_required, deletion_required = determine_required_updates(existing_configs, desired_configs)
+
+        assert len(addition_required) == 0, "Expected no additions changes"
+        assert len(deletion_required) == 1, "Expected one deletion of duplicate deploytarget config"
\ No newline at end of file