diff --git a/fusion_accounting_ai/services/data_adapters/__init__.py b/fusion_accounting_ai/services/data_adapters/__init__.py
index df70bf1d..1f69704c 100644
--- a/fusion_accounting_ai/services/data_adapters/__init__.py
+++ b/fusion_accounting_ai/services/data_adapters/__init__.py
@@ -3,5 +3,7 @@ from ._registry import get_adapter, register_adapter
 
 from . import bank_rec    # noqa: F401
 from . import reports     # noqa: F401
+from . import followup    # noqa: F401
+from . import assets      # noqa: F401
 
 __all__ = ['DataAdapter', 'AdapterMode', 'get_adapter', 'register_adapter']
diff --git a/fusion_accounting_ai/services/data_adapters/assets.py b/fusion_accounting_ai/services/data_adapters/assets.py
new file mode 100644
index 00000000..df7eaca6
--- /dev/null
+++ b/fusion_accounting_ai/services/data_adapters/assets.py
@@ -0,0 +1,42 @@
+"""Assets data adapter."""
+
+from .base import DataAdapter
+from ._registry import register_adapter
+
+
+class AssetsAdapter(DataAdapter):
+    FUSION_MODEL = 'fusion.asset'
+    ENTERPRISE_MODULE = 'account_asset'
+
+    def list_assets(self, state=None):
+        return self._dispatch('list_assets', state=state)
+
+    def list_assets_via_fusion(self, state=None):
+        return self._read_fusion('fusion.asset', state=state)
+
+    def list_assets_via_enterprise(self, state=None):
+        return self._read_fusion('account.asset', state=state)
+
+    def list_assets_via_community(self, state=None):
+        # No assets feature in pure Community — return empty list with a hint.
+        return []
+
+    def _read_fusion(self, model_name, state=None):
+        """Shared shape between fusion and enterprise (both use account.asset-like API)."""
+        Model = self.env[model_name].sudo()
+        domain = []
+        if state:
+            domain.append(('state', '=', state))
+        records = Model.search(domain, limit=200)
+        out = []
+        for r in records:
+            out.append({
+                'id': r.id,
+                'name': getattr(r, 'name', None),
+                'state': getattr(r, 'state', None),
+                'value': getattr(r, 'original_value', None) or getattr(r, 'acquisition_cost', None),
+            })
+        return out
+
+
+register_adapter('assets', AssetsAdapter)
diff --git a/fusion_accounting_ai/services/data_adapters/followup.py b/fusion_accounting_ai/services/data_adapters/followup.py
new file mode 100644
index 00000000..c6d98a76
--- /dev/null
+++ b/fusion_accounting_ai/services/data_adapters/followup.py
@@ -0,0 +1,47 @@
+"""Follow-up data adapter."""
+
+from datetime import date, timedelta
+from .base import DataAdapter
+from ._registry import register_adapter
+
+
+class FollowupAdapter(DataAdapter):
+    FUSION_MODEL = 'fusion.followup.line'
+    ENTERPRISE_MODULE = 'account_followup'
+
+    def overdue_invoices(self, days_overdue=30, partner_id=None):
+        return self._dispatch('overdue_invoices', days_overdue=days_overdue, partner_id=partner_id)
+
+    def overdue_invoices_via_fusion(self, days_overdue=30, partner_id=None):
+        return self.overdue_invoices_via_community(days_overdue=days_overdue, partner_id=partner_id)
+
+    def overdue_invoices_via_enterprise(self, days_overdue=30, partner_id=None):
+        return self.overdue_invoices_via_community(days_overdue=days_overdue, partner_id=partner_id)
+
+    def overdue_invoices_via_community(self, days_overdue=30, partner_id=None):
+        cutoff = date.today() - timedelta(days=days_overdue)
+        domain = [
+            ('move_type', 'in', ('out_invoice', 'out_refund')),
+            ('state', '=', 'posted'),
+            ('payment_state', 'in', ('not_paid', 'partial')),
+            ('invoice_date_due', '<=', cutoff),
+        ]
+        if partner_id:
+            domain.append(('partner_id', '=', partner_id))
+        moves = self.env['account.move'].sudo().search(domain, limit=200, order='invoice_date_due asc')
+        return [
+            {
+                'id': m.id,
+                'name': m.name,
+                'partner_id': m.partner_id.id,
+                'partner_name': m.partner_id.name,
+                'invoice_date_due': m.invoice_date_due,
+                'amount_residual': m.amount_residual,
+                'currency_id': m.currency_id.id,
+                'days_overdue': (date.today() - m.invoice_date_due).days,
+            }
+            for m in moves
+        ]
+
+
+register_adapter('followup', FollowupAdapter)
diff --git a/fusion_accounting_ai/tests/test_data_adapters.py b/fusion_accounting_ai/tests/test_data_adapters.py
index 4bff52aa..0d6de1a8 100644
--- a/fusion_accounting_ai/tests/test_data_adapters.py
+++ b/fusion_accounting_ai/tests/test_data_adapters.py
@@ -74,3 +74,19 @@ class TestReportsAdapter(TransactionCase):
         for row in result:
             self.assertIn('account_id', row)
             self.assertIn('balance', row)
+
+
+@tagged('post_install', '-at_install')
+class TestFollowupAdapter(TransactionCase):
+    def test_overdue_invoices_returns_list(self):
+        adapter = get_adapter(self.env, 'followup')
+        rows = adapter.overdue_invoices(days_overdue=30)
+        self.assertIsInstance(rows, list)
+
+
+@tagged('post_install', '-at_install')
+class TestAssetsAdapter(TransactionCase):
+    def test_list_assets_returns_list(self):
+        adapter = get_adapter(self.env, 'assets')
+        rows = adapter.list_assets()
+        self.assertIsInstance(rows, list)