diff --git a/ereuse_devicehub/migrations/versions/3a3601ac8224_tradedocuments.py b/ereuse_devicehub/migrations/versions/3a3601ac8224_tradedocuments.py
index 18b944b9..a574047c 100644
--- a/ereuse_devicehub/migrations/versions/3a3601ac8224_tradedocuments.py
+++ b/ereuse_devicehub/migrations/versions/3a3601ac8224_tradedocuments.py
@@ -101,6 +101,16 @@ def upgrade():
                     sa.PrimaryKeyConstraint('id'),
                     schema=f'{get_inv()}'
     )
+    # Action document table
+    op.create_table('action_trade_document',
+                    sa.Column('document_id', sa.BigInteger(), nullable=False),
+                    sa.Column('action_id', postgresql.UUID(as_uuid=True), nullable=False),
+                    sa.ForeignKeyConstraint(['action_id'], [f'{get_inv()}.action.id'], ),
+                    sa.ForeignKeyConstraint(['document_id'], [f'{get_inv()}.trade_document.id'], ),
+                    sa.PrimaryKeyConstraint('document_id', 'action_id'),
+                    schema=f'{get_inv()}'
+                    )
+
     op.create_index('document_id', 'trade_document', ['id'], unique=False, postgresql_using='hash', schema=f'{get_inv()}')
     op.create_index(op.f('ix_trade_document_created'), 'trade_document', ['created'], unique=False, schema=f'{get_inv()}')
     op.create_index(op.f('ix_trade_document_updated'), 'trade_document', ['updated'], unique=False, schema=f'{get_inv()}')
diff --git a/ereuse_devicehub/resources/device/schemas.py b/ereuse_devicehub/resources/device/schemas.py
index 828c9827..d9a658fe 100644
--- a/ereuse_devicehub/resources/device/schemas.py
+++ b/ereuse_devicehub/resources/device/schemas.py
@@ -50,7 +50,7 @@ class Device(Thing):
                     description='The lots where this device is directly under.')
     rate = NestedOn('Rate', dump_only=True, description=m.Device.rate.__doc__)
     price = NestedOn('Price', dump_only=True, description=m.Device.price.__doc__)
-    trading = EnumField(states.Trading, dump_only=True, description=m.Device.trading.__doc__)
+    # trading = EnumField(states.Trading, dump_only=True, description=m.Device.trading.__doc__)
     trading = SanitizedStr(dump_only=True, description='')
     physical = EnumField(states.Physical, dump_only=True, description=m.Device.physical.__doc__)
     traking= EnumField(states.Traking, dump_only=True, description=m.Device.physical.__doc__)
diff --git a/ereuse_devicehub/resources/tradedocument/models.py b/ereuse_devicehub/resources/tradedocument/models.py
index 6bce51e7..e8aa4637 100644
--- a/ereuse_devicehub/resources/tradedocument/models.py
+++ b/ereuse_devicehub/resources/tradedocument/models.py
@@ -1,3 +1,4 @@
+import copy
 from citext import CIText
 from flask import g
 
@@ -88,6 +89,32 @@ class TradeDocument(Thing):
         """
         return sorted(self.actions_multiple_docs, key=lambda x: x.created)
 
+    @property
+    def trading(self):
+        """The trading state, or None if no Trade action has
+        ever been performed to this device. This extract the posibilities for to do"""
+
+        confirm = 'Confirm'
+        to_confirm = 'ToConfirm'
+        revoke = 'Revoke'
+
+        if not self.actions:
+            return
+
+        actions = copy.copy(self.actions)
+        actions = list(reversed(actions))
+        ac = actions[0]
+
+        if ac.type == confirm:
+            return confirm
+
+        if ac.type == revoke:
+            return revoke
+
+        if ac.type == confirm:
+            if ac.user == self.owner:
+                return confirm
+            return to_confirm
 
     def last_action_of(self, *types):
         """Gets the last action of the given types.
diff --git a/ereuse_devicehub/resources/tradedocument/schemas.py b/ereuse_devicehub/resources/tradedocument/schemas.py
index 8e96e54a..fab95dc4 100644
--- a/ereuse_devicehub/resources/tradedocument/schemas.py
+++ b/ereuse_devicehub/resources/tradedocument/schemas.py
@@ -1,4 +1,4 @@
-from marshmallow.fields import DateTime, Integer
+from marshmallow.fields import DateTime, Integer, validate
 from teal.marshmallow import SanitizedStr, URL
 # from marshmallow import ValidationError, validates_schema
 
@@ -16,12 +16,16 @@ class TradeDocument(Thing):
                                default='', 
                                description=m.TradeDocument.id_document.comment)
     description = SanitizedStr(default='', 
-                               description=m.TradeDocument.description.comment)
+                               description=m.TradeDocument.description.comment,
+                               validate=validate.Length(max=500))
     file_name = SanitizedStr(data_key='filename',
                              default='',
-                             description=m.TradeDocument.file_name.comment)
+                             description=m.TradeDocument.file_name.comment, 
+                             validate=validate.Length(max=100))
     file_hash = SanitizedStr(data_key='hash',
                              default='',
-                             description=m.TradeDocument.file_hash.comment)
+                             description=m.TradeDocument.file_hash.comment,
+                             validate=validate.Length(max=64))
     url = URL(description=m.TradeDocument.url.comment)
     lot = NestedOn('Lot', only_query='id', description=m.TradeDocument.lot.__doc__)
+    trading = SanitizedStr(dump_only=True, description='')
diff --git a/ereuse_devicehub/resources/tradedocument/views.py b/ereuse_devicehub/resources/tradedocument/views.py
index dcb1e6e7..fa66b481 100644
--- a/ereuse_devicehub/resources/tradedocument/views.py
+++ b/ereuse_devicehub/resources/tradedocument/views.py
@@ -19,7 +19,6 @@ class TradeDocumentView(View):
     def post(self):
         """Add one document."""
 
-        # import pdb; pdb.set_trace()
         data = request.get_json(validate=True)
         hash3 = data['file_hash']
         db_hash = ReportHash(hash3=hash3)