diff --git a/loko/interventions/admin.py b/loko/interventions/admin.py
index d58c428..cf6a6e8 100644
--- a/loko/interventions/admin.py
+++ b/loko/interventions/admin.py
@@ -784,7 +784,17 @@ class OperationTemplateContractPostInline(admin.TabularInline):
     fields = ('contract', 'contract_post', 'default_quantity', 'comment')
     verbose_name = "Poste de contrat par défaut"
     verbose_name_plural = "Postes de contrats par défaut"
-    autocomplete_fields = ('contract', 'contract_post')
+
+    def formfield_for_foreignkey(self, db_field, request, **kwargs):
+        if db_field.name == "contract":
+            template_id = request.resolver_match.kwargs.get('object_id') if request.resolver_match else None
+            if template_id:
+                template = OperationTemplate.objects.filter(pk=template_id).first()
+                if template and template.thematic_id:
+                    kwargs["queryset"] = Contract.objects.filter(
+                        thematics=template.thematic
+                    ).distinct().select_related('company').order_by('contract_number')
+        return super().formfield_for_foreignkey(db_field, request, **kwargs)
 
 
 @admin.register(OperationTemplate)
@@ -833,8 +843,21 @@ class ContractOperationTemplatePostAdmin(admin.ModelAdmin):
         'operation_template__name',
         'contract_post__code',
         'contract_post__description_fr',
+        'contract_post__description_nl',
     )
-    autocomplete_fields = ('contract', 'operation_template', 'contract_post')
+    autocomplete_fields = ('operation_template',)
+
+    class Media:
+        js = ('interventions/admin_operation_template_dynamic.js',)
+
+    def formfield_for_foreignkey(self, db_field, request, **kwargs):
+        if db_field.name == "contract_post":
+            obj_id = request.resolver_match.kwargs.get('object_id') if request.resolver_match else None
+            if obj_id:
+                obj = ContractOperationTemplatePost.objects.filter(pk=obj_id).first()
+                if obj and obj.contract_id:
+                    kwargs["queryset"] = ContractPost.objects.filter(contract_id=obj.contract_id).order_by('order_number')
+        return super().formfield_for_foreignkey(db_field, request, **kwargs)
 
 
 @admin.register(OperationTemplateItem)
diff --git a/loko/interventions/static/interventions/admin_operation_template_dynamic.js b/loko/interventions/static/interventions/admin_operation_template_dynamic.js
index 35d7b75..528e0e1 100644
--- a/loko/interventions/static/interventions/admin_operation_template_dynamic.js
+++ b/loko/interventions/static/interventions/admin_operation_template_dynamic.js
@@ -1,7 +1,10 @@
 /**
- * Dynamic filtering for OperationTemplate admin form
- * Updates categories based on thematic selection
- * Updates asset models based on categories selection
+ * Dynamic filtering for OperationTemplate and ContractOperationTemplatePost admin forms:
+ * - Updates categories based on thematic selection
+ * - Updates asset models based on categories selection
+ * - Updates teams based on thematic selection
+ * - Updates inline contracts based on thematic selection
+ * - Updates contract posts dynamically based on selected contract (inlines and standalone form)
  */
 (function() {
     'use strict';
@@ -16,172 +19,295 @@
         var $ = django.jQuery;
 
         $(document).ready(function() {
-        var $thematic = $('#id_thematic');
-        var $team = $('#id_team');
-        var $categoriesFrom = $('#id_categories_from');
-        var $categoriesTo = $('#id_categories_to');
-        var $assetModelsFrom = $('#id_asset_models_from');
-        var $assetModelsTo = $('#id_asset_models_to');
-        
-        if (!$thematic.length) return;
-        
-        /**
-         * Update teams based on selected thematic
-         */
-        function updateTeams() {
-            if (!$team.length) return;
-            var thematicId = $thematic.val();
-            var currentTeamVal = $team.val();
+            var $thematic = $('#id_thematic');
+            var $team = $('#id_team');
+            var $categoriesFrom = $('#id_categories_from');
+            var $categoriesTo = $('#id_categories_to');
+            var $assetModelsFrom = $('#id_asset_models_from');
+            var $assetModelsTo = $('#id_asset_models_to');
 
-            $.ajax({
-                url: '/interventions/ajax/get-teams-by-thematic/',
-                data: { thematic_id: thematicId || '' },
-                success: function(data) {
-                    $team.empty();
-                    $team.append($('<option></option>').val('').text('---------'));
-                    var hasCurrentVal = false;
-                    data.teams.forEach(function(team) {
-                        var option = $('<option></option>')
-                            .val(team.id)
-                            .text(team.name);
-                        if (String(team.id) === String(currentTeamVal)) {
-                            option.prop('selected', true);
-                            hasCurrentVal = true;
+            /**
+             * Update teams based on selected thematic
+             */
+            function updateTeams() {
+                if (!$team.length || !$thematic.length) return;
+                var thematicId = $thematic.val();
+                var currentTeamVal = $team.val();
+
+                $.ajax({
+                    url: '/interventions/ajax/get-teams-by-thematic/',
+                    data: { thematic_id: thematicId || '' },
+                    success: function(data) {
+                        $team.empty();
+                        $team.append($('<option></option>').val('').text('---------'));
+                        var hasCurrentVal = false;
+                        data.teams.forEach(function(team) {
+                            var option = $('<option></option>')
+                                .val(team.id)
+                                .text(team.name);
+                            if (String(team.id) === String(currentTeamVal)) {
+                                option.prop('selected', true);
+                                hasCurrentVal = true;
+                            }
+                            $team.append(option);
+                        });
+                        if (!hasCurrentVal && currentTeamVal) {
+                            $team.val('');
                         }
-                        $team.append(option);
-                    });
-                    if (!hasCurrentVal && currentTeamVal) {
-                        $team.val('');
+                    },
+                    error: function() {
+                        console.error('Error fetching teams');
                     }
-                },
-                error: function() {
-                    console.error('Error fetching teams');
-                }
-            });
-        }
-
-        /**
-         * Update categories based on selected thematic
-         */
-        function updateCategories() {
-            var thematicId = $thematic.val();
-            
-            if (!thematicId) {
-                // Clear categories if no thematic selected
-                $categoriesFrom.empty();
-                $categoriesTo.empty();
-                updateAssetModels();
-                return;
+                });
             }
-            
-            // Get current selections
-            var selectedCategories = $categoriesTo.find('option').map(function() {
-                return $(this).val();
-            }).get();
-            
-            // Fetch filtered categories
-            $.ajax({
-                url: '/interventions/ajax/get-categories-by-thematic/',
-                data: { thematic_id: thematicId },
-                success: function(data) {
-                    // Clear both lists
+
+            /**
+             * Update categories based on selected thematic
+             */
+            function updateCategories() {
+                if (!$thematic.length || !$categoriesFrom.length) return;
+                var thematicId = $thematic.val();
+                
+                if (!thematicId) {
+                    // Clear categories if no thematic selected
                     $categoriesFrom.empty();
                     $categoriesTo.empty();
-                    
-                    // Populate categories
-                    data.categories.forEach(function(cat) {
-                        var option = $('<option></option>')
-                            .val(cat.id)
-                            .text(cat.name);
-                        
-                        // If previously selected, add to "chosen" list
-                        if (selectedCategories.indexOf(String(cat.id)) !== -1) {
-                            $categoriesTo.append(option);
-                        } else {
-                            $categoriesFrom.append(option);
-                        }
-                    });
-                    
-                    // Update asset models after categories change
                     updateAssetModels();
-                },
-                error: function() {
-                    console.error('Error fetching categories');
+                    return;
                 }
-            });
-        }
-        
-        /**
-         * Update asset models based on selected categories (or thematic if no categories)
-         */
-        function updateAssetModels() {
-            var thematicId = $thematic.val();
-            var categoryIds = $categoriesTo.find('option').map(function() {
-                return $(this).val();
-            }).get();
-            
-            if (!thematicId) {
-                // Clear asset models if no thematic selected
-                $assetModelsFrom.empty();
-                $assetModelsTo.empty();
-                return;
+                
+                // Get current selections
+                var selectedCategories = $categoriesTo.find('option').map(function() {
+                    return $(this).val();
+                }).get();
+                
+                // Fetch filtered categories
+                $.ajax({
+                    url: '/interventions/ajax/get-categories-by-thematic/',
+                    data: { thematic_id: thematicId },
+                    success: function(data) {
+                        // Clear both lists
+                        $categoriesFrom.empty();
+                        $categoriesTo.empty();
+                        
+                        // Populate categories
+                        data.categories.forEach(function(cat) {
+                            var option = $('<option></option>')
+                                .val(cat.id)
+                                .text(cat.name);
+                            
+                            // If previously selected, add to "chosen" list
+                            if (selectedCategories.indexOf(String(cat.id)) !== -1) {
+                                $categoriesTo.append(option);
+                            } else {
+                                $categoriesFrom.append(option);
+                            }
+                        });
+                        
+                        // Update asset models after categories change
+                        updateAssetModels();
+                    },
+                    error: function() {
+                        console.error('Error fetching categories');
+                    }
+                });
             }
             
-            // Get current selections
-            var selectedModels = $assetModelsTo.find('option').map(function() {
-                return $(this).val();
-            }).get();
-            
-            // Fetch filtered asset models
-            $.ajax({
-                url: '/interventions/ajax/get-asset-models/',
-                data: {
-                    thematic_id: thematicId,
-                    category_ids: categoryIds.join(',')
-                },
-                success: function(data) {
-                    // Clear both lists
+            /**
+             * Update asset models based on selected categories (or thematic if no categories)
+             */
+            function updateAssetModels() {
+                if (!$thematic.length || !$assetModelsFrom.length) return;
+                var thematicId = $thematic.val();
+                var categoryIds = $categoriesTo.find('option').map(function() {
+                    return $(this).val();
+                }).get();
+                
+                if (!thematicId) {
+                    // Clear asset models if no thematic selected
                     $assetModelsFrom.empty();
                     $assetModelsTo.empty();
-                    
-                    // Populate asset models
-                    data.models.forEach(function(model) {
-                        var option = $('<option></option>')
-                            .val(model.value)
-                            .text(model.display);
-                        
-                        // If previously selected, add to "chosen" list
-                        if (selectedModels.indexOf(model.value) !== -1) {
-                            $assetModelsTo.append(option);
-                        } else {
-                            $assetModelsFrom.append(option);
-                        }
-                    });
-                },
-                error: function() {
-                    console.error('Error fetching asset models');
+                    return;
                 }
+                
+                // Get current selections
+                var selectedModels = $assetModelsTo.find('option').map(function() {
+                    return $(this).val();
+                }).get();
+                
+                // Fetch filtered asset models
+                $.ajax({
+                    url: '/interventions/ajax/get-asset-models/',
+                    data: {
+                        thematic_id: thematicId,
+                        category_ids: categoryIds.join(',')
+                    },
+                    success: function(data) {
+                        // Clear both lists
+                        $assetModelsFrom.empty();
+                        $assetModelsTo.empty();
+                        
+                        // Populate asset models
+                        data.models.forEach(function(model) {
+                            var option = $('<option></option>')
+                                .val(model.value)
+                                .text(model.display);
+                            
+                            // If previously selected, add to "chosen" list
+                            if (selectedModels.indexOf(model.value) !== -1) {
+                                $assetModelsTo.append(option);
+                            } else {
+                                $assetModelsFrom.append(option);
+                            }
+                        });
+                    },
+                    error: function() {
+                        console.error('Error fetching asset models');
+                    }
+                });
+            }
+
+            /**
+             * Update contract options in inlines based on selected thematic
+             */
+            function updateContractsInlines() {
+                if (!$thematic.length) return;
+                var thematicId = $thematic.val();
+                $.ajax({
+                    url: '/interventions/ajax/get-contracts-by-thematic/',
+                    data: { thematic_id: thematicId || '' },
+                    success: function(data) {
+                        $('select[name$="-contract"]').each(function() {
+                            var $cSelect = $(this);
+                            var currentVal = $cSelect.val();
+                            $cSelect.empty();
+                            $cSelect.append($('<option></option>').val('').text('---------'));
+                            var hasCurrent = false;
+                            data.contracts.forEach(function(c) {
+                                var opt = $('<option></option>').val(c.id).text(c.label);
+                                if (String(c.id) === String(currentVal)) {
+                                    opt.prop('selected', true);
+                                    hasCurrent = true;
+                                }
+                                $cSelect.append(opt);
+                            });
+                            if (!hasCurrent && currentVal) {
+                                $cSelect.val('');
+                                $cSelect.trigger('change.dynamicPosts');
+                            }
+                        });
+                    }
+                });
+            }
+
+            /**
+             * Update posts dropdown based on selected contract
+             */
+            function updatePostsForContract($contractSelect, $postSelect, keepSelectedVal) {
+                var contractId = $contractSelect.val();
+                var currentPostVal = keepSelectedVal !== undefined ? keepSelectedVal : $postSelect.val();
+
+                if (!contractId) {
+                    $postSelect.empty();
+                    $postSelect.append($('<option></option>').val('').text('---------'));
+                    $postSelect.val('');
+                    return;
+                }
+
+                $.ajax({
+                    url: '/interventions/ajax/get-posts-by-contract/',
+                    data: { contract_id: contractId },
+                    success: function(data) {
+                        $postSelect.empty();
+                        $postSelect.append($('<option></option>').val('').text('---------'));
+                        var matched = false;
+                        if (data.posts && data.posts.length > 0) {
+                            data.posts.forEach(function(post) {
+                                var option = $('<option></option>')
+                                    .val(post.id)
+                                    .text(post.label);
+                                if (String(post.id) === String(currentPostVal)) {
+                                    option.prop('selected', true);
+                                    matched = true;
+                                }
+                                $postSelect.append(option);
+                            });
+                        }
+                        if (matched) {
+                            $postSelect.val(currentPostVal);
+                        } else if (currentPostVal) {
+                            $postSelect.val('');
+                        }
+                    },
+                    error: function() {
+                        console.error('Error fetching contract posts');
+                    }
+                });
+            }
+
+            function bindContractPostRow($row) {
+                var $contract = $row.find('select[name$="-contract"]');
+                var $post = $row.find('select[name$="-contract_post"]');
+                if (!$contract.length || !$post.length) return;
+
+                $contract.off('change.dynamicPosts').on('change.dynamicPosts', function() {
+                    updatePostsForContract($contract, $post);
+                });
+
+                // Initial load for existing row: if contract is selected, populate options
+                if ($contract.val()) {
+                    var initialPostVal = $post.val();
+                    updatePostsForContract($contract, $post, initialPostVal);
+                } else {
+                    $post.empty().append($('<option></option>').val('').text('---------'));
+                }
+            }
+
+            // Bind all inline rows
+            $('tr.form-row, tr[id^="contract_posts-"], .dynamic-contract_posts, tbody tr').each(function() {
+                bindContractPostRow($(this));
             });
-        }
-        
-        // Listen to thematic changes
-        $thematic.on('change', function() {
-            updateCategories();
-            updateTeams();
-        });
-        
-        // Listen to categories changes using MutationObserver
-        // (filter_horizontal uses JavaScript to move options, not change events)
-        if ($categoriesTo.length) {
-            var observer = new MutationObserver(function(mutations) {
-                updateAssetModels();
+
+            // Listen for new inline rows added dynamically in Django Admin
+            $(document).on('formset:added', function(event, $row, formsetName) {
+                bindContractPostRow($row);
             });
+
+            // Standalone form (ContractOperationTemplatePostAdmin)
+            var $standaloneContract = $('#id_contract');
+            var $standalonePost = $('#id_contract_post');
+            if ($standaloneContract.length && $standalonePost.length) {
+                $standaloneContract.on('change', function() {
+                    updatePostsForContract($standaloneContract, $standalonePost);
+                });
+                if ($standaloneContract.val()) {
+                    var initialPostVal = $standalonePost.val();
+                    updatePostsForContract($standaloneContract, $standalonePost, initialPostVal);
+                } else {
+                    $standalonePost.empty().append($('<option></option>').val('').text('---------'));
+                }
+            }
             
-            observer.observe($categoriesTo[0], {
-                childList: true,
-                subtree: true
-            });
-        }
+            // Listen to thematic changes
+            if ($thematic.length) {
+                $thematic.on('change', function() {
+                    updateCategories();
+                    updateTeams();
+                    updateContractsInlines();
+                });
+                
+                // Listen to categories changes using MutationObserver
+                if ($categoriesTo.length) {
+                    var observer = new MutationObserver(function(mutations) {
+                        updateAssetModels();
+                    });
+                    
+                    observer.observe($categoriesTo[0], {
+                        childList: true,
+                        subtree: true
+                    });
+                }
+            }
         });
     }
     
diff --git a/loko/interventions/tests/test_preventive_templates.py b/loko/interventions/tests/test_preventive_templates.py
index 6fbbe1f..48f99c6 100644
--- a/loko/interventions/tests/test_preventive_templates.py
+++ b/loko/interventions/tests/test_preventive_templates.py
@@ -1207,6 +1207,38 @@ class ContractOperationTemplatePostTests(TestCase):
         self.assertIn(f'value="{order.id}"', content)
         self.assertIn('selected', content)
 
+    def test_ajax_get_posts_by_contract(self):
+        """Test the AJAX endpoint filtering contract posts by contract."""
+        self.client.login(username='test_user_posts', password='password123')
+        url = reverse('interventions:ajax_get_posts_by_contract')
+        
+        # Call with no contract_id
+        res = self.client.get(url)
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.json().get('posts'), [])
+
+        # Call with self.contract
+        res = self.client.get(url, {'contract_id': self.contract.id})
+        self.assertEqual(res.status_code, 200)
+        posts_data = res.json().get('posts', [])
+        post_ids = [p['id'] for p in posts_data]
+        self.assertIn(self.post_1.id, post_ids)
+        self.assertIn(self.post_2.id, post_ids)
+        self.assertNotIn(self.post_other.id, post_ids)
+
+    def test_ajax_get_contracts_by_thematic(self):
+        """Test the AJAX endpoint filtering contracts by thematic."""
+        self.client.login(username='test_user_posts', password='password123')
+        url = reverse('interventions:ajax_get_contracts_by_thematic')
+
+        res = self.client.get(url, {'thematic_id': self.thematic.id})
+        self.assertEqual(res.status_code, 200)
+        contracts_data = res.json().get('contracts', [])
+        contract_ids = [c['id'] for c in contracts_data]
+        self.assertIn(self.contract.id, contract_ids)
+        self.assertNotIn(self.contract_other.id, contract_ids)
+
+
 
 
 
diff --git a/loko/interventions/urls.py b/loko/interventions/urls.py
index e314990..95178ed 100644
--- a/loko/interventions/urls.py
+++ b/loko/interventions/urls.py
@@ -107,6 +107,8 @@ urlpatterns = [
     path('ajax/get-subcategories/', views.ajax_get_subcategories, name='ajax_get_subcategories'),
     path('ajax/get-asset-models/', views.ajax_get_asset_models, name='ajax_get_asset_models'),
     path('ajax/get-replacement-models-by-category/', views.ajax_get_replacement_models_by_category, name='ajax_get_replacement_models_by_category'),
+    path('ajax/get-posts-by-contract/', views.ajax_get_posts_by_contract, name='ajax_get_posts_by_contract'),
+    path('ajax/get-contracts-by-thematic/', views.ajax_get_contracts_by_thematic, name='ajax_get_contracts_by_thematic'),
     # Template check for assets without matching templates
     path('<int:intervention_id>/check-asset-templates/', views.check_asset_templates_for_intervention, name='check_asset_templates'),
     path('<int:intervention_id>/create-operations-from-template/', views.create_operations_from_selected_template, name='create_operations_from_template'),
diff --git a/loko/interventions/views/general.py b/loko/interventions/views/general.py
index e4f2305..bf2b8a1 100644
--- a/loko/interventions/views/general.py
+++ b/loko/interventions/views/general.py
@@ -1300,3 +1300,66 @@ def ajax_get_replacement_models_by_category(request):
     except Exception as e:
         return JsonResponse({'error': str(e)}, status=400)
 
+
+def ajax_get_posts_by_contract(request):
+    """AJAX endpoint to get contract posts for a given contract.
+    Used by Django Admin to dynamically filter contract posts based on selected contract.
+    """
+    contract_id = request.GET.get('contract_id')
+    if not contract_id:
+        return JsonResponse({'posts': []})
+
+    try:
+        from contracts.models import ContractPost
+        posts = ContractPost.objects.filter(contract_id=contract_id).order_by('order_number')
+        lang = get_language()
+        posts_data = []
+        for post in posts:
+            desc = post.description_fr
+            if lang and lang.startswith('nl') and post.description_nl:
+                desc = post.description_nl
+            label_parts = []
+            if post.order_number:
+                label_parts.append(str(post.order_number))
+            if post.code:
+                label_parts.append(str(post.code))
+            if desc:
+                label_parts.append(desc)
+            label = " - ".join(label_parts) if label_parts else f"Poste #{post.id}"
+            posts_data.append({
+                'id': post.id,
+                'code': post.code,
+                'order_number': post.order_number,
+                'description': desc,
+                'label': label,
+            })
+        return JsonResponse({'posts': posts_data})
+    except Exception as e:
+        return JsonResponse({'error': str(e)}, status=400)
+
+
+def ajax_get_contracts_by_thematic(request):
+    """AJAX endpoint to get contracts for a given thematic.
+    Used by Django Admin to dynamically filter contracts based on selected thematic.
+    """
+    thematic_id = request.GET.get('thematic_id')
+    try:
+        from contracts.models import Contract
+        if thematic_id:
+            contracts = Contract.objects.filter(thematics__id=thematic_id).distinct().select_related('company').order_by('contract_number')
+        else:
+            contracts = Contract.objects.all().select_related('company').order_by('contract_number')
+        contracts_data = [
+            {
+                'id': c.id,
+                'contract_number': c.contract_number,
+                'description': c.description or '',
+                'label': f"{c.contract_number} ({c.company.name})" if c.company else c.contract_number,
+            }
+            for c in contracts
+        ]
+        return JsonResponse({'contracts': contracts_data})
+    except Exception as e:
+        return JsonResponse({'error': str(e)}, status=400)
+
+